I really need help on this bad

1. The main idea of this passage is about producers and consumers and how they get their food/survive.

2. The difference between producers and consumers is that producers can create their own food through photosynthesis but consumers can't so they eat other organisms to survive. (look at paragraph 2 about producer and paragraph 3 for consumers.

3. Consumers need producers because they generate and release oxygen which is critical for survival it says so in paragraph 4.

4. Cellular respiration results in making energy molecules and ATP essential for survival.

Hope this helps

Explanation:

the real answer is b. scintillation counter