Which of the following countries is the top oil consuming and importing country? a. saudi arabia b. canada c. united states d. france

C. United states

Explanation

The United States is the biggest oil consumer in the world with an estimated 15.65 million barrels per day consumed. It has 16% share of the world total all consumption. Other larger consumers are China, Japan and India. In 2005, the United States recorded the highest level of oil consumption in the history of U.S with a mark of 20.8million barrel per day.

United States

Explanation: The United States, the world's biggest oil consuming country, consumed 18.5 million barrels of oil per day in 2012, which accounted for nearly 20% of the world's total oil consumption per day.

1. is geographic distribution

2 is increasing complexity

3 is transitional forms

1. amino acid refers to the fundamental building block of proteins, comprising of an amino group and a carboxyl group.

2. catalyst refers to any substance, which increases the rate of chemical reaction without being used up in the reaction.

3. a complex molecule containing he genetic code is dna or deoxyribonucleic acid.

4. an enzyme refers to a molecule of protein, which is unique in accelerating up a particular chemical reaction in the biological systems.

5. nucleic acid refers to an sequence of sugars, phosphates, and nitrogenous bases, for example, dna and rna.

6. a protein refers to a large, composite organic molecule comprising of a huge number of amino acids associated together with the of peptide bonds.

7. rna refers to a nucleic acid that takes part in the production of proteins.

8. substrate refers to a compound, which takes part in a chemical reaction, and is chemically modified by the reaction.