The independent variable is the plant growth or how much the plants grow.
Answer:
A. an increase in the greenhouse effect
Explanation:
Carbon dioxide controls the amount of water vapor in the atmosphere and thus the size of the greenhouse effect.
Squamous cells area one single layer and flattened, this allows for diffusion of oxygen and carbon dioxide to happen easily in the lungs.
Answer:
C. Oxygen & Hydrogen.
Explanation:
The body is made of 65% Oxygen, 18% Carbon, 10% Hydrogen, 3% Nitrogen, and 4% other elements.
If it’s a yes or no question then yes because they spread through organisms. there are many organisms in the water that bacteria can spread through
