Which of the following is a conversion
from light energy to chemical energy?
A. Turning on a stove to heat
dinner.
B. Making toast in a toaster.
C. Growing an apple tree.
D. Turning on a lamp
Which of the following is a renewable
resource?
A. Wind energy
B. Coal
C. Petroleum
D. Natural gas
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Answer:
1. C. Growing an apple tree.
2. A. Wind energy
Question:
1. Which of the following is a conversion from light energy to chemical energy?
A. Turning on a stove to heat dinner.
B. Making toast in a toaster.
C. Growing an apple tree.
D. Turning on a lamp
Explanation:
Take, for example, an apple tree. The tree absorbs light energy from sunlight, converting the light energy into chemical potential energy stored in chemical bonds. The tree uses this energy to build leaves and branches and fruit.
Question:
2. Which of the following is a renewable resource?
A. Wind energy
B. Coal
C. Petroleum
D. Natural gas
Explanation:
Wind is a renewable energy source. Overall, using wind to produce energy has fewer effects on the environment than many other energy sources. Wind turbines may also reduce the amount of electricity generation from fossil fuels, which results in lower total air pollution and carbon dioxide emissions.
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