Answer the question below:   A planet with a small orbit will take more or less time to revolve around the Sun than one with a long orbit?    Assuming that:  The planets further from the Sun will have bigger orbits, and therefore take longer to revolve around the Sun.
less

Answer the question below:   If Mona is comparing fossils she found in very old rocks to fossils she found in newer rocks. Which fossils does she expect to be more similar to living animals old rocks or newer rocks?    Assuming that:  In general, fossils in older rocks are less similar to modern organisms.
newer rocks

Q: Answer the question below:   A fossil in the lowest layer of rock would be younger or older than one higher up?    Assuming that:  Fossils found at the lowest layer of rock would be the oldest, as these would have been buried for the longest time, whereas fossils found closer to the surface would be buried more recently and therefore be younger.
A: older

Question: Answer the question below:   If Milo is growing a certain type of bacteria that can resist antibiotics and he decreases the amount of bacteria he is growing, would mutations in the bacteria increase or decrease?    Assuming that:  Bacteria with a mutation the helps resist antibiotics increase in numbers, so the mutation becomes more common.
Answer: decrease

*Question*
Answer the question below:   If Mona is building a machine to help her vacuum her floor and she increases the amount of force the engine inside the vacuum, what happens to the vacuum ability to make work easier increases or decreases?    Assuming that:  Machines make work easier by increasing the amount of force that is applied, increasing the distance over which the force is applied, or changing the direction in which the force is applied.
**Answer**
increases

(Q).
Answer the question below:   To have more elephants, we should increase or decrease forests near them?    Assuming that:  The forest habitat of elephants has also decreased in size due to humans moving in, so the numbers of the elephants have decreased.
(A).
increase