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Goryan [66]
2 years ago
8

A farmer who has grown corn for the past five years notices in the sixth year that his harvest is significantly smaller, despite

an increase in labor on the farm. The following year, the harvest continues its decline. Which of the following explanations most plausibly accounts for the reduction in corn yield? A. soil degradation B. desalinization C. better irrigation D. terracing Reset Next
Geography
2 answers:
ELEN [110]2 years ago
6 0
I would say A. soil degradation
seropon [69]2 years ago
3 0

Answer:

A.

Explanation:

Growing a different crop (crop rotation) will prevent the soil from degrading, which is what happened to the farmer.

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Answer:

It may change structure do to human activity.

Explanation:

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A confined aquifer has a specific storage of 2.4 x 10-S ft and a thickness of 300 ft. How much water (in acre-ft) would it yield
Georgia [21]

Answer:

water it yield is 244290.45 ft

Explanation:

given data

specific storage SS = 2.4 × 10^{-5} ft

thickness b = 300 ft

water declined ΔH  = 4.8 ft

radius r = 1,500 ft

to find out

How much water  would it yield

solution

we know that

volume of water is

Vw = S × Area ×  ΔH    ..............1

here S = specific storage × thickness

S = 2.4 × 10^{-5} × 300

S = 7.2 ×  10^{-3}

and

area = πr² = π 1,500² = 7068589.471 ft²

so

volume of water is

Vw = 7.2 ×  10^{-3}  × 7068589.471 ×  4.8

Vw = 244290.45

so water it yield is 244290.45 ft

7 0
3 years ago
4. France's crude death rate is probably higher than Bangladesh's because
Dima020 [189]
Ok so the answer will be C
6 0
3 years ago
3.Why should a model of the carbon cycle include the burning of fossil fuels?(1 point)
-Dominant- [34]

Burning fossil fuels moves carbon from the geosphere to the atmosphere.

Explanation:

A carbon cycle is a model that indicates how carbon is cycled across the spheres of the earth. Burning of fossil fuels  is part of this cycle indicating movement of carbon from the geosphere – since fossil fuels are derived from the geosphere (the rocks of the crust) - to the atmosphere as carbon dioxide. Again this carbon will cross over to the biosphere when taken up by plants from the atmosphere during photosynthesis

4 0
3 years ago
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