(Q).
Q: The earth's atmosphere, climate, and living things are effected by what feature that covers more than 70 percent of earth's surface? Choices: - rivers - continents - mountains - oceans A:
(A).
oceans

(Q).
Q: What is thought to be the oldest eukaryotes? Choices: - amoebas - prokaryotes - arthropods - protists A:
(A).
protists

(Q).
Q: What forms a ketone when oxidized? Choices: - enzyme - aldehyde - carbolic acid - secondary alcohol A:
(A).
secondary alcohol