You are given a short paragraph, a question and two choices to answer from. Choose the correct answer based on the paragraph and write the answer(not the key).

Q: Paragraph: By using multiple stages, empty fuel containers could drop away. This reduced the mass of the rocket so that it could fly higher.
Question: David is getting ready to fly into space on a rocket. As the rocket shoots upwards, part of the mass falls away, allowing the rocket to go
Choices: A)higher
B)lower

A: higher
****
Q: Paragraph: By using multiple stages, empty fuel containers could drop away. This reduced the mass of the rocket so that it could fly higher.
Question: David is getting ready to fly into space on a rocket. As the rocket shoots upwards, part of the mass attaches, allowing the rocket to go
Choices: A)higher
B)lower

A: lower
****
Q: Paragraph: Bases have pH values above 7. The higher the pH value, the more strongly basic the substance.
Question: Will measures water at a pH of 7, while a bleach solution measures at 12. Which substance is less basic?
Choices: A)water
B)bleach

A:
water
****