The primary advantage of hydropower is that it ________
A) is the most economically feasible of all the renewable energy resources
B) produces no environmental effects
C) is widely available to all countries
D) does not rely on fossil fuel to generate electricity
E) is the oldest of the renewable energy resources
D
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Which type of drainage pattern is shown in Figure 24.6? Briefly describe the structural conditions that have created this pattern.
What will be an ideal response?
Inversions form most readily in the afternoon on sunny days
Indicate whether the statement is true or false
Areas especially rich in plant species that are found nowhere else and are in great danger of extinction are called ____.
A. biodiversity friendly B. natural ecosystems C. emergency hotspots D. biodiversity hotspots E. liferaft ecosystems
Which of the following molecules is(are) polar?
A) H2O B) CO2 C) both of them D) neither of them