Answer:
Soils are the key ingredient for the plants and crops to grow. A large amount of soil is eroded every year due to the practice of farming. This is about 25 billion tons of soils.
Due to the various type of agricultural practices, the topsoil comprising the valuable minerals are continuously eroded by factors such as wind and water. This results in the increasing loss of soil fertility, and also it can lead to the occurrence of droughts, sandstorms, and dust bowls.
Dust bowls are the region where there occurs no rainfall and absence of vegetation, and soils are eroded drastically making a sandy dust environment, and affecting the ecosystem.
In order to prevent these effects, certain steps must be taken, and they are as follows-
- Planting more trees and crops so that the wind cannot cause much impact on the area.
- The waste vegetative particles and matters must be allowed to distribute evenly over the surface of these areas, so that wind cannot easily transport these sediments.
- Mulching of the soil must be done.
- By constructing the retaining walls.
Answer:
d. Temperate regions have weak thermoclines (moderate in summer, less in winter)
Explanation:
The theromoclines and how strong they are are crucial for the movement and exchange of nutrients between the surface waters and the deeper waters. The nutrients are mostly found in the deeper and colder waters, so they only reach the surface and shallower waters when the thermoclines are weaker. With the movement of the nutrients toward the surface waters, they provide nutrition for the marine organisms, resulting in much larger populations and much more species to be present. The temperate regions are the ones where the theromoclines start to become weaker because the waters become cooler, especially in the winter when the temperatures are much lower and the waters become colder as well.
Answer:
Country A: Stage 2 with a high birth rate and a youthful population and is a developing country.
Country B: Stage 4 with a low birth rate and low death rate with an aging population. It is a developed country and there is a possible Stage 5.
Explanation:
I hope this helps!
Supervolcanoes are different from normal volcanoes. They aren't recognisable by a conical shape that you would imagine a volcano to be. These volcanoes form calderas which are huge craters in the ground after previous eruptions, which are so large that they are often only noticeable from the air above
Answer:
Explanation:
Importance of troposphere to life on earth
The study of the troposphere is very important because we breathe the air in this layer of air. ... Tropospheric processes, such as the water or hydrologic cycle (the formation of clouds and rain) and the greenhouse effect, have a great influence on meteorology and the climate.
