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Sloan [31]
3 years ago
7

How does contour plowing in farming help to prevent pollution?

Biology
1 answer:
wel3 years ago
8 0

D) Contour plowing is used to reduce erosion and sediment pollution.

Explanation:

Contour plowing in farming helps to prevent pollution by reducing surface erosion of topsoil and preventing sediment pollution.

Contour plowing is a farming technique in which crops are planted along the slopes of hills or contoured areas.

  • The rate at which rain water and precipitation moves along slope terrain is very fast.
  • This causes the washing off of the the topsoil on hills to eroded very fast.
  • Contour plowing breaks the slope and farming is done along movement on the contour.
  • This prevents topsoil erosion.
  • It also prevents sediment pollution in nearby streams and water bodies that are located around the valley at the base of the hill.

Learn more:

Soil erosion brainly.com/question/2473244

#learnwithBrainly

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Agricultural lands frequently require nutrient augmentation because
fenix001 [56]

The given is incomplete as the options are missing. The correct options for the given question are as follows-

(A) cultivation of agricultural land inhibits the decomposition of organic matter

(B) nitrogen-fixing bacteria are not as plentiful in agricultural soils because of the use of pesticides

(C) land that is available for agriculture tends to be nutrient-poor

(D) the nutrients that become the biomass of plants are not cycled back to the soil on lands where they are harvested

Answer:

Option (D)

Explanation:

In order to carry out agricultural practices, the soil must be rich in essential nutrients for the growth of crops. The soil fertility is a key role in the production of crops.

This agricultural land often requires a large amount of these nutrients and minerals because some of the nutrient minerals are converted into plant biomass which is then used up to produce energy in other sectors. So, the nutrients that were present in the soil are taken away and not transferred back into the soil. This means that the nutrient cycle gets affected. Due to this reason, there requires a constant supply of nutrients into the agricultural fields.

Thus, the correct answer is option (D).

8 0
3 years ago
A section of our DNA that codes for a specific trait is called a....
Licemer1 [7]

Answer:

Gene, a part of DNA that determines the trait of individual characteristics

Explanation:

5 0
3 years ago
Which of the following is not an example of an abiotic factor?
brilliants [131]
Since we can't see your choices we can only do so much to help you unfortunately. However, the word abiotic means non living. So if it's saying which is NOT an example of an abiotic factor, then your answer would be the choice that has to do with living. For example, plants, animals, etc.
6 0
3 years ago
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12. Which of the following best explains how meiosis, followed by fertilization, ensures genetic variation?A. Changes in an orga
maxonik [38]

Those changes in an individuals' genotype that ensure genetic variation begin to be done in Metaphase, where chromosomes are aligned to the equatorial axis of the cell, and eventually, each chromosome is pulled to each pole of the cell during Anaphase I. After this process, follows telophase I, where we can say that each chromosome is given to each of the two daughter cells. We can say then that the creation of different versions of alleles begins with Telophase I.

6 0
1 year ago
Help pleaseeee have a great day
valina [46]

Answer:

I think it's false bc it's in metaphase where the form a cell plate

Explanation:

maybe

7 0
3 years ago
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