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.

the truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey.

your answer is "the 1950's"