Fatima is watching her pet cat, winter, napping in the sun. fatima is curious about the heart rate of winter when she is napping, so she develops this scientific question: does a cat’s heart rate change while it is napping?
she decides to develop a hypothesis to test this scientific question. what could fatima’s hypothesis be?

The correct answer will be-when a cat naps in the sun, heart rate changes.

Explanation:

A scientific hypothesis is a proposed statement which explains the natural phenomenon to a limited extent. A hypothesis is formed on the basis of previous research work, therefore, a hypothesis is considered educated guess.

A hypothesis must be constructed in a way that it could be testable therefore includes the variables.

In the given question, Fatima wants to develop a hypothesis related to the heart rate of the cap which could be " when cat naps in the sun, heart rate of cat changes.

If a cat is napping, its heart rate will be slower than when it is playing because its heart will not need to pump as much blood to its muscles.

Explanation:

this is the sample response on E2020

i believe it would cause an increase of percipitation, though i could be wrong. so i would say b is the answer.