Answer:
Option-C
Explanation:
Desertification refers to the formation of barren land from the arid land due to many factors which could be climatic or anthropogenic. The climate factors include no rainfall, arid conditions, less water and water bodies, overgrazing by animals and many others.
As a result of these factors, the plants die or are unable to hold the soil. This leads to loosening of soil which causes soil erosion. This converts the fertile land into infertile land and the land becomes barren.
Thus, desertification is the correct answer.
Answer-
Wright Flyer, The First Flight: Wright Flyer. Reference Article: Facts about the Wright Flyer's historic first flight
Answer:
no problem, I'll still answer it
DNA is transcribed to RNA, which is translated into proteins. So DNA is in charge of making proteins (this narrows it down to either A or D). When there is a change in a person's genetic information, it will not result in a contagious disease. Those are usually caused by bacteria or viruses. A change in DNA could potentially result in a genetic disease. Therefore, answer A is correct. Hope this helps! :)
The by-product of the process of photosynthesis that was important because it altered the atmosphere in the Earth would be oxygen. Having oxygen in the atmosphere, allowed the aerobic organisms to adapt and evolve continuously. Even, today, oxygen is an essential substance in humans and animals.<span />