Well can i see what ur assigment was. then i could better help.
Answer:
As the cleanest-burning fossil fuel, natural gas plays an important role in improving the environment by reducing air pollution and greenhouse gas emissions across the U.S. Natural gas produces half as much carbon dioxide and an even smaller fraction of other air emission generated by coal.
Explanation:
Answer: RNA
Explanation: because in DNA, it results with viruses, and RNA is better I guess
Anaphase, they line up at the equator during the previous phase, Metaphase
Frequency theory of hearing
According to the frequency theory of hearing the auditory nerve's impulse corresponds to the frequency of a tone. This allows the recognition of pitch. Sounds are detected in the ear as acoustic signal in the external and middler ear. It is later on transformed in an electrical impulse that a nerve can detect in the cochlea. The theory assumes that a nerve can fire at rates of 20 to 20000 times per second. This is the assumption that the frequency of human hearing range is at 20 to 20000.
