Answer:
The atmosphere is the blanket of gases which surrounds Earth. It is held near the surface of the planet by Earth's gravitational attraction.
Explanation:
The naked mole rats' population increases by the reproduction of the queen. The colony has one queen that may produce as many as 30 pups in one litter. The female can live up to 18 years, continues to breed and produce every 80 days.
The answer is "All of the above".
Answer:
Certain fossils, called index fossils, help geologists match rock layers. To be useful as an index fossil, a fossil must be widely distributed and represent a type of organism that existed for a brief time period.