The correct answer is catalyst. Hope that helps.
<span>The greatest concentration of nitrogen on the Earth is found in its atmosphere. The atmosphere is approximately 78 percent nitrogen. and second one bacteria</span>
Solution:
The ecosystem boundary of a drainage basin can be defined by the mountains, hills and valleys that determine where the water flows.
Since the Ecosystem is define as all the organisms and their physical and chemical environment within a specific area where energy and matter influence the distribution and abundance of organisms present.
Thus the right answer is mountains, hills and valleys that determine where the water flows.
Important for the good growth of most plants and crops. also important directly as food for humans.
Answer:
B
Explanation: tides is obvious and the moon doesn't cause seasons hopefully next time youll get it the first try gl m8
