Examine the statements below and choose the correct answer:
1.
| Assertion (A): | The amount of energy available at each trophic level decreases progressively. |
| Reasoning (R): | After four trophic levels, there is very little useable energy left. |
2.
| Assertion (A): | Biodegradable wastes and non-biodegradable wastes should be discarded separately. |
| Reasoning (R): | Non-biodegradable waste are not a threat to the environment. |