Question

Which two of the following sentences from the article include CENTRAL ideas of the article?

1. Observing, or noticing, your surroundings is at the core of science and engineering.

2. In order to understand how models relate to real life, we must use scale, which is the mathematical relationship between how things appear in a representation, and how they appear in real life.

3. These chunks have distinct names and help scientists study specific events or life forms from a particular period.

4. It helps them, and us, better understand our world.


A
1 and 2

B
1 and 3

C
2 and 4

D
3 and 4

Answer 1

Answer: I think it’s A.

Explanation: not sure, thy seem central

Answer 2

The two sentences that include central ideas of the article are:

• Observing, or noticing, your surroundings is at the core of science and engineering.

• It helps them, and us, better understand our world.

Therefore, the correct answer is C, "2 and 4".