AP BIOLOGY

ECOLOGY

CHEMICAL CYCLES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which element is the primary component of fossil fuels?
A
Nitrogen
B
Carbon
C
Oxygen
D
Phosphorus
Explanation: 

Detailed explanation-1: -Carbon is the basic chemical element present in fossil fuels. It is the major constituent of coal and petroleum. Apart from carbon, hydrogen, nitrogen and sulfur are few other constituents.

Detailed explanation-2: -Fossil fuels such as Coal, Oil and Gas are some of the most important natural resources that we use everyday. These fossil fuels are all Hydrocarbons, they are compounds formed from only two elements, Carbon and Hydrogen.

Detailed explanation-3: -Answer: Fossil fuels are hydrocarbons comprised primarily of the following elements: carbon and hydrogen and some sulfur, nitrogen, oxygen, and mineral matter.

Detailed explanation-4: -Fossil fuels are formed from the decomposition of buried carbon-based organisms that died millions of years ago. They create carbon-rich deposits that are extracted and burned for energy. They are non-renewable and currently supply around 80% of the world’s energy.

Detailed explanation-5: -Oil is the most widely used fossil fuel. Crude oil consists of many different organic compounds which are transformed to products in a refining process.

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