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Luden [163]
2 years ago
9

How agriculture is affected by the saline soils?

Geography
1 answer:
Olegator [25]2 years ago
6 0

Answer: Salinity negatively affects the plant growth.

Explanation:

Salinity can be defined as the increase in concentration of salt in the soil. The increase in salinity negatively affects growth of the plants. The salinity restricts the uptake of essential minerals that are required by the plants for their survival and reproduction for example, nitrogen uptake is restricted by the salinity. Salinity reduces the growth of the plants and also restricts the reproduction process. Also some ions are toxic for plants, so it causes the death of plants and reduces the expected agricultural yields.

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What is urbanization?
Ivan
Urbanization is the process in which the human population is increasingly more urban, that is, settled in the urban areas -in cities and in the suburbs. So urbanisation is the process of people moving to cities and to suburbs - the correct answer is:
A. a process in which an increasing number of people move to cities and suburbs 

4 0
3 years ago
When Carla solved for the height from the ground to the point where the ladder
Westkost [7]

Answer:

<em>See explanation</em>

Explanation:

Given

Represent the vertical angle with \theta

\theta = 75

The question has incomplete details because the length of the ladder is not given; neither is the distance between the ladder and the wall given.

<em>See attachment for illustration</em>

So, this solution will be based on assumptions.

Represent

- The height from ground to the top of the ladder with y

- The length of the ladder with L

- The distance between the ladder and the wall with x

Carla could solve for y in any of the following ways:

1. Tan formula

tan \theta = \frac{opp}{adj}

In this case:

tan \theta = \frac{x}{y}

Multiply both sides by y

y * tan \theta = \frac{x}{y} * y

y * tan \theta = x

Divide both sides by tan

y   = \frac{x}{tan \theta}

y   = \frac{x}{tan 75}

This can be used if the distance (x) between the ladder and the wall is known.

Assume x = 15

y   = \frac{15}{tan 75}

y = 4.02

2. Cosine formula

cos \theta = \frac{adj}{hyp}

In this case:

cos \theta = \frac{y}{L}

Multiply both sides by L

L * cos \theta = \frac{y}{L} * L

Lcos \theta = y

y = Lcos \theta

y = Lcos75

This can be used if the length (L) of the ladder is known.

Assume L = 15

y = 15 * cos75

y = 3.88

3 0
2 years ago
Extensive landscapes formed by the dissolution of limestone and other carbonate rock and characterized by pitted, bumpy surface
wariber [46]

Answer:

A. Karsty Topography

Explanation:

Karsty topography is characterized by numerous caves, sinkholes, fissures, and underground streams and it is usually found regions of high rainfall where bedrock consists of carbonate-rich rock, such as limestone, which is easily dissolvable

7 0
3 years ago
More than half of the population is engaged in agriculture in all of the following regions except __________. A. China B. Wester
kotykmax [81]
B. Western Europe 
Because of industrialization 
5 0
3 years ago
Read 2 more answers
Irrigation machinery has __________ the amount of irrigated land in the US.
Shkiper50 [21]

Irrigation machinery has <u>quadrupled </u>the amount of irrigated land in the US.



Irrigation refers to the act of artificially providing water to land to support the development of crops. It is an antiquated agrarian system and may have been honed as ahead of schedule as 5000 B.C. along the banks of such consistently flooding streams as the Nile. Channels were burrowed to broaden the region secured by the surge, and dams were raised to trap water on the land after the floodwaters had died down. The advancement of preoccupation dams and of water-lifting machines allowed the water system of terrains lying over those typically come to by floodwaters. Remainders of these antiquated structures have been found in Egypt, where all farmlands are flooded; Iraq; Lebanon; Syria; China; India; Peru; Mexico; and the United States. Present day water system frameworks are as yet in view of these two key building developments.

8 0
3 years ago
Read 2 more answers
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