Not sure if you still need the answer but its number Three, they are the decomposers in many ecosystems
Scientific tests can help determine substances that appear similar but react differently under the same circumstances
hope this helps :)
<span>
There are dark regions with numerous craters called impact craters and they cover one-third of the moon. The remainder of the moon is covered by lighter regions which have many ridges and grooves . The ridges are as high as 2000ft and stretch for thousands of miles.</span>
Answer:
The study of oceans and their life.
Explanation:
The study of oceans, including seawater, the ocean floor, and marine plants and animals.
