Answer:
D) the sum of all physical properties of a substance
Because of photosynthesis
Answer:
produce energy without using fossil fuels.
Explanation:
People can use renewable energy sources, such as solar and wind power. Renewable energy sources help reduce acid rain because they produce much less pollution.
Answer:nuclear reactor, solar panel
Explanation:there are several papers about going to moon and making a working habitat system a moon base, but we need power and i am confuse with which is best source for generating power for moon mission.
