Q: Scientists use what scale to illustrate the order in which events on earth have happened? Choices: - ecological succession - fossil record - cataclysmic time scale - geologic time scale A:
geologic time scale

(Question)
Q: What is the apparatus used for carrying out an electrolysis reaction? Choices: - Golgi apparatus - catalyst - an aqueous cell - an electrolytic cell A:
(Answer)
an electrolytic cell

Ques: Q: What is the cause of most ocean waves? Choices: - tides - Magnetic pull - Gravity - winds A:
Ans: winds

(Q).
Q: Rising air currents carry water vapor into what? Choices: - stratosphere - ionosphere - troposphere - atmosphere A:
(A).
atmosphere

Ques:Q: Parasitic leeches feed off of what? Choices: - brain - tissue - tumor - blood A:

Ans:blood

Q: What is the smallest class of elements? Choices: - halogens - noble gases - synthetics - metalloids A:
metalloids