PLS PLS PLS HELP!!! In developing countries, the use of wood as major source of energy has created an increase in what?
A. Economic dependence on industrialized nations
B. Sales and profits for international oil corporations
C. Deforestation and other environmental problems
D. Nuclear waste products

C.

Explanation:

Using more wood= Deforestation and other environmental problems

C. Deforestation and other environmental problems.

Explanation:

If wood is the main energy source, you're constantly cutting trees down for wood, which leads to deforestation and desertification.

1. It's not B, crude oil has nothing to do with trees,

2. It's not D, nuclear waste has nothing to do with trees,

3. A has nothing to do with wood or trees.

two jet streams that directly affect the formation of weather in the continental part are a polar jet and a subtropical jet. they are responsible for the transportation of weather systems, which directly affect people. the polar front is the boundary between cold air from the north pole and warmer equatorial air. both the polar jet and the subtropical jet blow from the west to the east, and follow the boundary between cold and warm air.

the strongest jet streams are polar jets, while subtropical jets are somewhat weaker.

the right answer is c. the polar jet stream is generaly stronger than the subtropical jet stream.