Female sea turtles prefer to lay their eggs on dark, sandy beaches. Once the eggs hatch, the turtle young use the light of the moon to guide them to the ocean. They must enter the ocean quickly in order to find food and avoid the many predators that can locate them on the beach. As more homes and businesses are built along the coastline, the sea turtles become more threatened. Which of the following types of pollutions from homes and businesses would have the greatest impact on sea turtles finding their way to the ocean?

A.

noise

B.

light

C.

air

D.

water

answer

B.

light

Yes, the correct answer is B: Light.

Explanation: When baby turtles hatch from their eggs on the sand at night, they rely on the moonlight and its reflection on the water to guide them towards the water. With houses and new buildings being built along the shoreline, the new hatchlings get confused and can tend to follow the bright lights of the houses and buildings instead of the moonlight, putting them in danger of many different harmful things.

answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients:   open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures:   the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c