As the Universe expands, galaxies move further and further apart. A scientist sees that some galaxies are further apart than before, so they know that the universe's expansion is less or more?
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(Question)
When a person exercises regularly, and is fit, the heart undergoes certain long-term adaptations. The heart muscle gets stronger, and expels more blood with each contraction. Rich works out every day. Paul does not work out at all. Whose heart expels less blood per contraction, resulting in lower BPM Rich or Paul?
(Answer)
Paul

Ques: Gravity is a pull which all matter exerts on all other matter, the more mass, the stronger the pull. James is a much smaller person than Sally. Which person has more gravity Sally or James?
Ans: Sally

(Q).
More pollutants mean poorer air quality. After the pile of tires at the landfill caught on fire, the smoke released into the air made the air quality better? or worse?
(A).
worse

Ques:As the distance between the objects increases the magnetic force of attraction decreases. If Mona is holding a toy truck and a toy car a certain distance away from each other and she then moves the two objects farther apart, which happens to the magnetic force of attraction between the two objects increases or decreases?

Ans:decreases

Ques:Natural selection is the process by which living things with beneficial traits produce more offspring, so their traits become more common over time. Living things with great traits should produce more or less offspring than living things with better traits?

Ans:
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