The most difficult property of a soil to modify is fertility, while the easiest property to modify is texture.
What is the ground?Soil is the surface part of the earth's crust, biologically active, which comes from the disintegration or physical or chemical alteration of the rocks and the residues of the activities of living beings that settle on it.
What are the main properties of the soil?Some of the soil properties are:
Texture. Soils vary among themselves according to the elements that constitute them and their texture changes according to the quantity and size of the particles that form it.Fertility. Soils vary among themselves according to their level of fertility, that is, according to their ability to support plant life.PH. Soils vary from each other according to their level of acidity (pH). The pH is measured on a scale that goes from 1 to 14, with 7 being a neutral pH, less than 7: acidic and greater than 7: basic.Mutation. Soils change over time and due to factors such as the decomposition of organic waste, excessive rainfall, among others.Permeability. Soils vary among themselves according to their permeability, that is, the ability to filter water and air.Structure. Soils vary among themselves according to the way in which the elements and materials that constitute them are grouped.Salinity. Soils vary among themselves according to the percentage of accumulated soluble salts they have.Porosity. The soils vary among themselves according to the number and structure of the pores, which are those soil spaces that are empty, that is, they are not formed by solid matter, but by water and air.What is the easiest and most difficult soil property to modify?The easiest property to modify of the floor is the texture because if we want a more rigid or softer floor we can replace it with any material that is available for that purpose. However, this does not guarantee other properties such as fertility, salinity, good pH, among others.
On the other hand, the most difficult soil property to modify is fertility, since this property is the result of very specific physical and chemical processes. For example, we cannot modify the fertility of the soil of a desert.
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Answer:
A for the first one
Explanation:
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Which marine habitats would have the least access to primary producers?
a. salt marshes and estuaries
b. coral reefs and lagoons
c. mangroves and intertidal zones
d. deep sea and sea floor
Answer:
D. Deep sea and sea floor
Explanation:
EXPLAIN How might you use engineering, either by designing a device or process,
to help reduce the impact of human activity on a local species?
A microwave absorbing device can be created to absorb the microwaves in the air from the communication signal plant or lines.
Cell phones or towers of cell communication, or towers can emit a frequency of 900 to 1800 MHz microwaves which are responsible for negatively affecting the health of birds.This have been proved that it can cause thinning of the skulls of the chicks and thinning of their egg shells which can reduce the population of local bird species. Thus the development of microwave absorbing device can help in reducing the negative influence of microwaves on bird species population.Learn more about microwaves:
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Why is humus important?
A) It increases soil porosity.
B) It decreases soil acidity.
C) It increases soil basicity.
D) It decreases water movement.
Answer:
D) It decreases water movement.
Explanation:
Humus is known as part of the soil formation. It is characterized by various qualities some of which include containing nutrients such as nitrogen. It is also characterized by its ability to retain water content or soil moisture. Humus is made from the decays of plants wastes such as leaves.
Hence, in this case, the correct answer is Humus is important because "It decreases water movement."
Answer:
c
Explanation:
Explain the two reasons why DNA changes
Answer:
1.) Mutation or outside effect
2.) The DNA copies itself
Explanation:
1.) Mutations can occur when a body is exposed to high amounts of radiation or other harmful chemicals, thus changing the DNA.
2.) In order for our bodies to grow, cells must divide and make new cells. Each time a cell makes new cells, the DNA has to copy itself for the new cell. This process is called “replication.”
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as cells undergo cellular respiration, what products are produced, and how are they released from the body
Answer:
The cells reproduce The products of cellular respiration are carbon dioxide and water. Carbon dioxide and there released by being transported from your mitochondria out of your cell, to your red blood cells, and back to your lungs to be exhaled
Explanation:
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The products that are produced during cellular respiration are carbon dioxide and water. It uses oxygen as a reactant.
Cellular respiration:The process by which organisms take up oxygen and glucose as food molecules and then convert the energy for various activities leads to the formation of waste products like carbon dioxide and water.
This process breaks down sugar in the presence of oxygen to release energy.
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Describe two ways that you could increase the strength of the magnetic field produced by an electromagnet
Answer:
See explanation
Explanation:
A magnetic field refers to the region in space where the influence of the magnet is felt.
An electromagnet is made up of a length of wire wound around a core to form a coil and then connected to a source of current.
There are certain ways to increase the strength of an electromagnet. These include;
wrapping the coil around a piece of iron increasing the number of turns of the coilincreasing the current that passes through the corein a tropical forest the trees often grow very closely together, which reduces the amount of light reaching the forest floor. the seeds of many species will not germinate unless they get plenty of light. Suggest why this is an advantage to the seedlings. someone answer this plssss
Answer:
Explanation:
The seedlings gaining sunlight will help them be able to grow and go through photosynthesis as they are able to gain sunlight which they need
In a tropical forest, the trees often grow very closely together, which reduces the amount of light reaching the forest floor and seeds of many species will not germinate unless they get plenty of light so that they can do photosynthesis and grow.
What are the best conditions for seedling growth?Many factors are required for seedlings to grow, such as proper sunlight, wind, fertile soil, and so on, here seedlings that are present in dense forest that rarely get sunlight never grow, but those that do grow get sunlight, and because they are present in dense forest, there is less transpiration from lower plants.
Hence, in a tropical forest, the trees often grow very closely together, which reduces the amount of light reaching the forest floor and seeds of many species will not germinate unless they get plenty of light so that they can do photosynthesis and grow.
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Sophie was asked to draw a wave with a wave height of 2 meters and a wavelength of 1 meter. Below is the image she drew. What needs to be corrected on the image?
a. The distance from the still water level to the trough needs to be changed to 1 meter.
b. The distance from the still water level to the crest needs to be changed to 1 meter.
c. The distances from the still water level to the trough and the crest need to be changed to 1 meter.
d. The distance between the two crests needs to be changed to 2 meters.
Answer:
C. The distances from the still water level to the trough and the crest need to be changed to 1 meter.
Explanation:
I took the test also I want to thank the people in the comments for giving me the correct answer
In the image, the distances from the still water level to the trough and the crest needs to be changed to 1 meter. Thus, the correct option is C.
What is wavelength?Wavelength is the spatial period of a periodic wave. It is the distance over which the wave's shape repeats periodically. The wavelength is the distance between two crests and troughs. Wavelength is the distance which is measured by the unit meter. Wave height is the vertical distance between the crest and the trough of a wave.
For example: Still-Water Line is the level of the lake surface if it is perfectly calm and flat. The crest is the highest point on the wave above the still-water line.
The distances from the still water level to the trough and the crest need to be changed to 1 meter in the diagram to correct the wave height and wavelength of the wave.
Therefore, the correct option is C.
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*hihi help please* Is a liger considered a species? Explain why or why not.
Answer:
No.
Explanation:
Big cat hybrids are not real species, For animals to be a species, they need to give birth to successful offspring, who can reproduce themselves. For big cat hybrids, this will not happen as male ligers are sterile, and females are not always able to reproduce
Answer:
its not
Explanation:
question: Is a liger considered a species? Explain why or why not.
The liger is a hybrid cross between a male lion and a female tiger; both are in the genus Panthera but of the species leo and tigris respectively. Ligers exist only in captivity because the habitats of the parental species do not overlap in the wild.
please look at picture
Which of the following is not a blood cell?
a. leukocyte
b. lymphocyte
c. erythrocyte
d. monocyte
Bacteria are sometimes called nature's recyclers because they...
A.
Undergo conjugation
B.
Break down nutrients in dead matter
C.
Can switch between respiration and fermentation
D.
Carry out photosynthesis
Answer:
B
Explanation:
They break down matter into rich soil and nutrients
Answer:
B
Explanation:
The numerous species of bacteria that help recycle nutrients know as decomposer.
1. Baking soda turns.............
1.turmeric red
2.purple cabbage juice green
3.red litmus blue
4.all of the above
Answer:
D) all of the above
Explanation:
Turmeric, purple cabbage juice (containing anthocyanin), and litmus paper all act as indicators which help us to detect whether a particular substance is acidic or basic.
In basic medium, turmeric changes it's colour to red, purple-cabbage juice turns to green and red litmus turns to blue.
Baking soda/Sodium carbonate Na
is basic in nature and thus causes the above changes in the indicators.
Where are the male and female parts of a flower located?
Answer:
The male part of the flower are called stamens and are made up of anther at the top and the filament that supports the anther. the female element are called pistil. the top of the pistil is called the stigma.
In E. coli cells, maltose, a type of sugar, is needed to turn on the genes that are regulated by the mal operon. This type of regulation is called (1 point)
positive control
negative control
operon control
repressor control
Answer:
I THINK IS B
Explanation:
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Answer:
positive control
Explanation:
A You tube video called “Charlie Bit My Finger” went viral. Watch it and determine how each of the following theories would explain the appeal: Psychodynamic, Behaviorist, social-cultural, and Evolutionary
Answer:
k
Explanation:
The number of protons in one atom of an element is that element’s
Answer:
Atomic Number tells you the number of protons in one atom of an element
Explain how gravity affects a plant's growth. pls
Answer:
Plants respond directly to Earth's gravitational attraction, and also to light. Stems grow upward, or away from the center of Earth, and towards light. ... Plants' growth response to gravity is known as gravitropism; the growth response to light is phototropism. Both tropisms are controlled by plant growth hormones.
Which is the best example of amplification of signal?
Answer:
activation of 100 molecules by a single signal binding event
Explanation: i hope this help
Which statement about the inner planets' orbits is true?
A. Venus orbits the sun more quickly then Mercury
B. Mercury orbits the sun more slowly than mars
C. Earth orbits the sun more quickly then Venus
D, Mars orbits the sub more slowly than Earth
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Which of the following is a true statement about the rock cycle?
a
Sedimentary rock can revert to metamorphic rock but never to igneous rock
b
Weathering occurs in igneous rocks but never in sedimentary or metamorphic rocks
c
Heat, pressure, cooling, weathering, erosion and deposition change rock
d
The formation of rock within the rock cycle ends after metamorphic rocks form
Answer:
A.
Explanation:
becuase when the cycle occurs sediments make sedimatary rock and sedimetary rock after heat and pressure it make metamorphic rock not igneous rock.
Statement which is true about rock cycle is that sedimentary rock can revert to metamorphic rock but never to igneous rock.
What are sedimentary rocks?They are the types of rocks which are formed as a result of accumulation of minerals or organic particles at the surface of the earth.Sedimentation is the name given to a collective process which cause the particles to settle.
The study of sedimentary rocks is useful in civil engineering and as important sources of coal, fossil fuels and ores.The color of sedimentary rock is often determined by iron content and sometimes due to the presence of organic matter.
They are classified based on origin in to 4 types which are clastic, biochemical ,chemical and other sedimentary rocks.While based on composition they are classified as siliciclastic,carbonate ,evaporite,organic rich,siliceous ,iron-rich and phosphatic sedimentary rocks.
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Explain coding DNA vs noncoding DNA
Answer:
Non-coding DNA sequences are components of an organism's DNA that do not encode protein sequences. Some non-coding DNA is transcribed into functional non-coding RNA molecules (e.g. transfer RNA, ribosomal RNA, and regulatory RNAs). ... Since that time, this non-functional portion has controversially been called "junk DNA".
What is the percent by volume of a solution formed by adding 15 L of acetone to 28 L of water?
Answer:
34.88 %
Explanation:
To solve this question, we are going to assume that the acetone has 100% solution.
We know that 15 L of acetone was added to 28 L of water
We need to determine the percent by volume of a solution as
15 L of acetone/ (15L of acetone +28L of water)
= 15L/43L
=0.3488
= (0.3488×100%)
= 34.88 %
Hence, the percent by volume of a solution formed is 34.88
Help ASAP! TY SO MUCH BOYS AND GIRLS
Answer:
1
4
7
6
5
2
3
Explanation:
Sorry if my answer is wrong
What is the role of dystrophin in normal muscles? How is the different in DMD muscles?
Explanation:
this answers may help you
What determines whether a person has a genetic disorder
What were Mendel's inheritance factors renamed?
Answer:
During the first decade of the 20th century, Mendel's work was rediscovered, his "factors" were renamed "genes" and his ideas were rapidly absorbed into animal and plant breeding.
Explanation:
I majored in Biology
What are the different groups DNA?
Answer:
Because there are four naturally occurring nitrogenous bases, there are four different types of DNA nucleotides: adenine (A), thymine (T), guanine (G), and cytosine (C).
Explanation:
Answer:
There are four different DNA
Adenine: A purine derivative, it is paired with thymine in double-stranded DNA.
Thymine: A pyrimidine derivative, it is paired with adenine in double-stranded DNA.
Guanine: A purine derivative, it is paired with cytosine in double-stranded DNA.
Cytosine: It is paired with guanine in double-stranded DNA.
Explanation:
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Brain-List?
Help ASAP! Ty boys and girls
Answer:
a)
Explanation:
not 1000% sure if that is correct but I hope it still helps :/