Explain how does the displacement tank measures volume

Plz plz plz quick! 49 points for whoever which of the following statements about greenhouse effect is true? *life on earth is suffering because of greenhouse effect *the greenhouse effect is caused by human activity *all greenhouse gases are harmful *life on earth would not exist without the greenhouse effect

Ais a group of individuals of the same that exist together in the same place at the same time

Plants consume most of their carbon from a. the soil b. the water c. the roots d. the air