Answer:
c
Explanation:
planets are round because of their gravitational field acts as though it pulls everything from the center of its body and pulls everything toward it
Answers
1a
2a
3b
4a
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Explanation:
Carbon dioxide is added to the atmosphere naturally when organisms respire or decompose (decay), carbonate rocks are weathered, forest fires occur, and volcanoes erupt. Carbon dioxide is also added to the atmosphere through human activities, such as the burning of fossil fuels and forests and the production of cement.
This contributes to brand new brain cells and it increases the number of pathways for oxygen, energy, and to remove waste from the brain. Aerobic exercise<span> is the most beneficial type of </span>exercise<span> on the </span>nervous system<span>. ... </span>Exercise<span> improves your cognitive function and makes you more alert, as well as reduces stress.</span>
The changing species concept has affected classification systems by distinguishing one species from the other. It has the effect of making to appear that species and their distinctive attributes are external and fixed. The reason for that because o the evolutionary process they have undergone.
