Why are orcas having trouble reproducing?

they start breeding at the ages 14-15, give birth to only 1 calf at a time every 3-10 years, the babies nurse for a full year, and almost half of all babies die within the first year :/

Explanation:

the most common type of reef is the fringing reef. this type of reef grows seaward directly from the shore. they form borders along the shoreline and surrounding islands.

your answer would be a, maximum exploitation of resources.