C
Cutting trees reduces vegetation that protect soil from agents of erosion. The roots of trees offer organic matter on which soil particles bind to and hence become less easily carried away by water runoff or wind. Trees also act as good windbreakers hence reducing the speed at which winds can carry oil particles.
Explanation:
A decrease in trees also means increased carbon dioxide in the atmosphere. This is because trees are major carbon sinks because they sequester carbon dioxide from the atmosphere into their tissue through photosynthesis. Trees also evolve oxygen during photosynthesis. This supply of oxygen is important in safeguarding the ozone from degradation. A decrease in ozone would cause an increase in penetration of UV radiation that harms genetic material.
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Answer:
A. Elevation
Explanation:
Highland climates like those found in Tibet have their climates dictated by elevation, for the most part.
There is really nothing to know. All you have to use is context clues and common sense. We know some synonyms for direct are manage and handle. Indirect means not direct, right? And we can't handle or manage earth's interior (core), right? Therefore, the study of earth's interior is an example of indirect observation because we cannot directly manage it.
You are screwed. Good luck!
Answer:
A mid-ocean ridge separates the Pacific plate and the Nazca plate off the western coast of South America. Which statement best describes the relative motions of the Pacific and Nazca plates? The Pacific plate is moving to the east, and the Nazca plate is moving to the west.