Q: What might a scientist do to confirm the work of another? Choices: - question their methods - develop a completely different experiment - study their work - replicate their work A:
replicate their work

(Question)
Q: The primary substance that human cells, and ultimately human beings, are made up of is what? Choices: - air - oil - gas - water A:
(Answer)
water

Ques: Q: What is the collective travel of sheep known as? Choices: - gaggle - load - den - herd A:
Ans: herd

(Q).
Q: What are groups of tens to hundreds of thousands of stars held tightly together by gravity called? Choices: - elliptical clusters - elongated clusters - galaxy - globular clusters A:
(A).
globular clusters

Ques:Q: What do you call the set of seventeen chemical elements possessing particular importance for a variety of industrial processes, used frequently in modern technology? Choices: - base chemicals - fossil fuel - reactive elements - rare earth metals A:

Ans:rare earth metals

Ques: Q: The structure of the gas carbon dioxide consists of one atom of carbon and two atoms of what? Choices: - sulfur - methane - Helium - oxygen A:
Ans:
oxygen