Answer:
option a
Explanation:
because When hydrogen is used to power a fuel cell, the only byproducts are water and heat—no pollutants or greenhouse gases are produced.
Answer:
Compare and contrast inexhaustible and renewable resources. Inexhaustible resources are sources of energy that will never run out. In contrast, renewable resources could potentially run out. They are finite energy resources that can be replaced in a relatively short period of time.
Explanation:
<span>Coronary arteries supply blood to the heart muscle.</span>
Answer:
crushing, roasting, magnetic, speparatipn, flotation, and leaching.
Explanation:
typical beneficiation processes include crushing, roasting, magnetic separation, flotation, and leaching. Second, additional processes such as smelting and alloying are used to produce the metal that is to be <u><em>fabricated into parts that are eventually assembled into a product.</em></u>
2 is crescent and 4 is gibbous
