Organic compound, butane Encycopadia Britannica, Inc. Any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen. So the answer would be B.) Sample A contains carbon, hydrogen, and oxygen. I hope this helps.
Answer:
A
Areas at high elevations have cooler temperatures.
B) they stay the same for many generations
The answer should be D because if thats one of your answers on your tests and you missed it, then i would recemend studing. D is the answer because if organisms die, then new ones grow.
Answer:
compost or natural fertilizersand pesticides
