The answer is 4 million, there are about 9-10 million unique organic compounds that are known to exist
Heterogeneous mixtures are made of different substances that remain physically seperate. An example would be mixing sand and sugar together.
the answer would be soil
The answer is B soil
Answer: Biodiversity is important to humans for many reasons. ... Ecological life support— biodiversity provides functioning ecosystems that supply oxygen, clean air and water, pollination of plants, pest control, wastewater treatment and many ecosystem services.
Explanation:
Answer:
Si is reduced since it loses the oxygen atom
Answer:
Explanation:
combustion reacts with oxygen