(Question)
You are presented with the question "What does potassium do for plants?" and the following answer choices:  - Helps them pollinate  - Helps them grow  - duplicate itself  - hydrate their cells  - Makes them taste better  - hydrogen and oxygen  - Decrease bodily water  - Kills them  Now knowing that aplant requires nutrients to grow and potassium is an essential nutrient for plants and animals, choose the best answer.
(Answer)
Helps them grow


(Question)
You are presented with the question "Most ecosystems get energy from what in the atmosphere?" and the following answer choices:  - fires  - Sun  - wind  - summer  - oxygen  - Light  - heat  - H20  Now knowing that most ecosystems get energy from sunlight and on Earth, energy from sunlight heats the atmosphere more at the equator than at the poles, choose the best answer.
(Answer)
heat


(Question)
You are presented with the question "What is necessary for the survival of animals?" and the following answer choices:  - honey  - acid rain  - woods  - warmth  - genes  - food  - oxygen  - heat  Now knowing that an animal requires warmth for survival and light and heat and warmth are basic necessities for survival, choose the best answer.
(Answer)
