Answer:
It's Oxygen.
Explanation:
Some abiotic factors, such as oxygen, are important in aquatic ecosystems as well as terrestrial environments. Terrestrial animals obtain oxygen from the air they breathe. Oxygen availability can be an issue for organisms living at very high elevations, however, where there are fewer molecules of oxygen in the air.
hope it helps.
Answer:
The four difference between chemical fertilizers and organic fertilizers are following :•
- chemical fertilizers prepared in industries whereas organic fertilizers prepared in field
- chemical fertilizer does not provide humus to the soil whereas organic fertilizers provide humus to the soil
- in chemical fertilizer , these are chemical that are added to the soil to increase its fertility and productivity. whereas in organic fertilizers, These are obtained from dead and decaying plants and animals.
- Rich in plant nutrients whereas Less rich in plant nutrients
Answer:
Counteract
Explanation:
You are describing the definition of the word Counteract so that must be the answer.
