In the darkness of the deep ocean, some organisms produce light through a process called

Answer: Bioluminescence.

Explanation:

Bioluminescence is the phenomena of production of light by living organisms.

This phenomenon is very common in deep sea oceans because at the depth of the ocean it is very dark and it helps the organisms to survive in the following ways :

1. It helps to attract prey.

2. It helps to confuse the predator.

3. To camouflage.

4. For communication.

5. To generate warning signals.

6. For illuminating the water column.

Answer: Bioluminescence.

Explanation:

Bioluminescence is the phenomena of production of light by living organisms.

This phenomenon is very common in deep sea oceans because at the depth of the ocean it is very dark and it helps the organisms to survive in the following ways :

1. It helps to attract prey.

2. It helps to confuse the predator.

3. To camouflage.

4. For communication.

5. To generate warning signals.

6. For illuminating the water column.

answer: zinc is the substance which has a volume of 1.38 .

density is defined as the mass of an object per unit volume.

it can be calculated by dividing mass of a substance by its volume i.e.

si unit of density is kg per cubic meter and cgs unit of the same is gram per cubic centimeter.

now from the given data volume can be calculated by the formula .

hence, the volume of aluminium will be = which comes out to be 1.703 .

similarly, volume of zinc, chromium, and nickel will be 1.378 , 0.869 , and 0.356 respectively.