Answer:
d
Explanation:
<em>The correct answer would be that the food could only be made of carbohydrates.</em>
<u>Proteins contain other elements such as nitrogen and sulfur in addition to carbon, hydrogen, and oxygen while nucleic acids and triglycerides contain phosphorus in addition to carbon, hydrogen, and oxygen.</u>
The only chemical substance that contains carbon, oxygen and hydrogen is carbohydrates.
Correct option: d
The term scientific methodology has to do with the process by which knowledge is acquired in science.
<h3>What is scientific methodology?</h3>
The term scientific methodology has to do with the process by which knowledge is acquired in science. This process usually involves the heavy use of experimentation.
First the scientist carries out an observation which leads to the propounding of a hypothesis which is then tested by experiment before it could be accepted as a fact.
Learn more about scientific methodology:brainly.com/question/14368636
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You're right. The Upper Mantle is directly under the Crust. Hope this helped! =^-^=
0.388 Hope this helped let me know if it was wrong :)