Answer:
polluted drinking water and disease
Explanation:
Desertification is defined as the land degradation in drylands which loss its ability of biological productivity due to human intervention and natural processes and the areas loss their fertility.
The major concern of desertification is polluted drinking water and disease because water and health are the primary need of a person.
Due to desertification, the water quality in the area become worse as desertification affect plant life and without any plant life the water get polluted for drinking and other daily works as well.
Desertification also increases risks of diseases and degrade one's heath because of the environmental condition. The food supply is very low that causes malnutrition, lack of clean water and poor hygiene results into several diseases and air pollutant such as dust causes respiratory diseases.
Hence, the correct answer is "polluted drinking water and disease".
Answer:
<em>Vines climb in the sense that their stems will proceed on a vertical path if secured to a support as they grow. because of a force known as geotropism - it is a reaction to gravity. The upward growth of shoots from seeds is known as negative geotropism whereas the downward growth of roots is known as positive geotropism.</em>
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Answer:
Option D. is the right answer
Explanation:
John C Fremont, is an American explorer who had undertaken many expeditions, in which the second expedition describes his Oregon Trail.
He crossed the Sierra Nevada mountain range and entered California. He passed through Nebraska, Wyoming. Fur trade was a famous trade in Wyoming.
He traveled through a rugged terrain which was totally empty and uninteresting to look at. He reached Great Salt Lake where he collected plants and rock specimen. It was a 14 month mission which earned him the title ‘Pathfinder’.
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Answer:
philosophy, political systems, technology, trade, and military developments
Explanation: