Answer:
sorry im not in that level
Explanation:
Bottom to top is: 1. troposphere 2. stratosphere 3. mesosphere 4. thermosphere
Answer:
Though chemical fertilizers increase crop production; their overuse has hardened the soil, decreased fertility, strengthened pesticides, polluted air and water, and released greenhouse gases, thereby bringing hazards to human health and environment as well.
Approximately 50% of the human genome