Pick two ways do salts enter the ocean.
1. ice bergs melting
2. weathering and erosion
3. black smokers
4. oxygen dissolved from the atmosphere

it is b

explanation: mark brainliest because i am trying to get to the next level and i just need 1 more

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.

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.