Sources of marine pollution are:Options :Industrial effluentsOil spilageNuclear testsAll of these

To answer the question regarding the sources of marine pollution, let’s examine each option:

1. Industrial Effluents: This is a significant source of marine pollution as factories and industries discharge various pollutants into oceans and rivers, leading to contamination of marine ecosystems.

2. Oil Spillage: Oil spills are major environmental disasters that severely affect marine life and the quality of water. They can occur due to tanker accidents, drilling, or transportation of oil.

3. Nuclear Tests: These tests can lead to radioactive waste being released into the marine environment, contributing to pollution and long-term ecological damage.

4. All of These: Since all the mentioned options—industrial effluents, oil spillage, and nuclear tests—are known contributors to marine pollution, this option encompasses all the previous responses.

Final Answer

Therefore, the correct answer is: All of these.