Answer:
Prehistoric
Explanation:
The Prehistoric Period—or when there was human life before records documented human activity—roughly dates from 2.5 million years ago to 1,200 B.C. It is generally categorized in three archaeological periods: the Stone Age, Bronze Age and Iron Age.
Answer:
the components
Explanation:
when talking about the chemical composition is the same thing as saying the chemical components
Answer:
the answer is b.
Explanation:
The inside of bone is called marrow, which is responsible for creating blood cells, vital to homeostasis. obviously, bone gives us support, and shape.
so, out of the choices, the answer is b.
Human activities such as Smog and Greenhouse gas can weaken the Earth's atmosphere allowing the suns rays to be more powerful when passing through the Atmosphere.
Answer:
im pretty sure its the answer you have!
Explanation: