Answer:
<em>Atomic hydrogen efficiently scatters ultraviolet radiation emitted by the Sun, and the amount of scattered light sensitively depends on the amount of H atoms that are present in the atmosphere.</em>
It’s B genetically engineered trees could have unexpected interactions with organisms of natural ecosystems.
D. Earthquakes, volcanoes, and hot springs release energy from Earth's interior.
Answer:
A <u><em>DIPEPTIDE</em></u> is formed when two amino acids combine and a <u><em>TRIPEPTIDE</em></u> is formed when three amino acids combine. A polypeptide is a long chain of amino acids linked by peptide bonds.