Question

Which two substances are among the four major types of organic compounds made by living things?

a) Potassium
b) Carbohydrates
c) Proteins
d) Water

Answer 1

I think it's carbon dioxide and proteins

Answer 2

Carbohydrates and proteins are the two substances among the four major types of organic compounds made by living things.

Step-by-step explanation:

Carbohydrates and proteins are among the four major types of organic compounds made by living things. Carbohydrates are a group of molecules that include sugars and starches, which provide energy for the body. Proteins are made up of amino acids and have various functions such as building and repairing tissues, and acting as enzymes and antibodies.