your answer will 100% be C.
Alzheimer's is characterized by mental deterioration, memory loss, and personality changes.
Explanation:
Greenhouse effect, a warming of Earth's surface and troposphere (the lowest layer of the atmosphere) caused by the presence of water vapour , carbon dioxide, methane, and certain other gases in the air. Of those gases, known as greenhouse gases, water vapour has the largest effect.
Answer:
Deoxyribonucleic acid is the full form of DNA.