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Ksenya-84 [330]
3 years ago
14

Which of the following have improved farming practices and crop production? Select all that apply.

Biology
1 answer:
STatiana [176]3 years ago
4 0

Answer:

sophisticated irrigation, chemical fertilizers, chemical pesticides

Explanation:

The use of irrigation to provide needed water and the use of natural fertilizers to promote crop growth are farming methods that have been practiced for centuries. More sophisticated irrigation techniques, various chemical pesticides, and modern chemical fertilizers have been developed in the twentieth century.

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In a controlled experiment in scientific study how long it takes parachute of different sizes to fall to the ground what is the
Grace [21]
The independent variable is a variable that can be stood alone. So therefore, the independent variable would be how long it takes to parachute.
6 0
3 years ago
What is the path that a body follows as it travels around another body in space is
Katena32 [7]

Answer:

The movement is called revolution when a body travels around another body in space.

Explanation:

The movement is called revolution when a body travels around another body in space. It is different from rotation which is a phenomenon where a body revolves around its own axis. For example, we can assume the motion of earth as revolution when it travels around the sun and completes one complete revolution in one year, on the other hand when it moves around its own axis the day and night transformation happens.  We can also take the example of moon which revolves around the earth and many other planets which revolve around the sun. So it is very easy to understand the concept of revolution.

Hope it helps!

6 0
3 years ago
How can humans have a positive impact on air quality?
Ne4ueva [31]

Answer:

by using public transportation instead of driving a car. O by moving to a large city, where air quality is better. by removing vegetation such as trees and shrubs. What is the answer.

Explanation:

# need any queshtions answered within minutes/seconds text me

-we all have those moments where we need those queshtions answered like that!

3 0
3 years ago
Explain why the tetraphenylcyclopentadienone is in deep purple color? Explain why the tetraphenylcyclopentadienone is in deep pu
NikAS [45]
<span>Tetraphenylcyclopentadienone has five conjugated aromatic rings. Its structure suggests that it is highly conjugated. With this structure, it absorbs the energy from wavelengths of colors other than violet and reflects the energy from violet wavelengths.</span>
4 0
3 years ago
Which sugar is present in the nucleic acid that is represented in the diagram?
S_A_V [24]

Answer:

either deoxyribose or ribose

Explanation:

i can't see the diagram, but-

  • if the diagram shows a single stranded chain of rna, then the answer is ribose
  • if the diagram shows a double stranded chain of dna, then the answer is deoxyribose
  • uracil and thymine are nucleic acids, not sugars/carbohydrates
8 0
3 years ago
Read 2 more answers
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