I think your answer would be b.
I think there are supposed to be multiple choice questions, but the amazon rainforest is an extremely unexplored piece of land. Scientists believe there may be cures for certain diseases inside, like cancer, from a plant or an animal that we have yet to discover.
Convection currents form in atmosphere and freshwater lake. Convection currents occur when there is difference in temperature in both substances (eg. fluids). When there is a difference in temperature, the hot substance rises and the colder one sinks. The flow then will be form a hotter to the colder region.
Answer:
the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material.
Explanation:
Answer:
Widespread soil exhaustion caused by decades of farming.
Explanation:
The agricultural lands of the south were extensively exploited with intensive cotton cultivation. This cultivation lasted for decades and was developed with agricultural techniques that were not concerned with sustainability. As a result, the southern soil was severely depleted. Soil exhaustion refers to the extreme reduction of organic matter. In the case of southern soils, the intensive use of the soil with cotton planting was the main cause of this exhaustion, however inadequate irrigation practices, mechanization of the soil, deforestation and burning can cause the same effect.
To avoid this, farmers in the south should have adopted practices that are more beneficial to the environment, in addition to promoting crop rotation.