Dead things were once living, such as a dead plant. Non-living things were never alive, like coal.
Energy and matter characterize both physical and biological systems. These systems are defined both by the types of energy and matter they contain and by how that matter and energy move through and between systems. ... This means that energy and matter can change forms but cannot be created or destroyed.
Answer:
I think the answer is C. between 6.5 and 7.5 because cells usually have a ph between 7.0 and 7.4
Explanation:
"(1) Human population growth reached 6.8 billion in 2010 and it continues to increase" is what led to the other <span>three, since all of these happen from human activity. </span>
Vegetables or fruits and other healthy foods
