The statement is b. False.
Comets do not orbit around the Sun in a short, circular paths, but they have very large and elongated, elliptical paths. Their paths are not like those of the planets where the distance between the planet and the Sun is kept in pretty much the same level (it differs throughout the year but not drastically), instead their paths make them go very close to the Sun at one point, and than go very far from the Sun at other point.
The correct answer is (c.) coastal. coastal deserts are characterized by moderately warm to cool temperatures. The cool and long winters of these coastal deserts are also followed by warm and long summers. A good example of this type of desert is the Atacama of Chile.
The lowlands west of Australia´s eatern mountain range are drained by the Murray-Darling River system, with its main headwaters in the <em>Great Artesian Basin.</em>
Answer:False
Explanation:
Overpopulation :This when the available resources exceed the population of the particular region
So, it can not be ecosystem toxification