Which of the following statements is correct?a)Too much hunting increa...
Statement Analysis and Explanation:
Statement A: Too much hunting increases the number of animals in forests.- This statement is incorrect. Hunting generally reduces the number of animals in forests, as it involves killing animals.
- Hunting can disrupt the natural balance of predator-prey relationships and lead to a decline in the population of certain species.
Statement B: Using sewers and treatment plants to remove human waste help in reducing pollution.- This statement is correct.
- Sewers and treatment plants play a crucial role in removing human waste and treating it before it is released into the environment.
- This helps in reducing pollution, as untreated human waste can contain harmful pathogens and pollutants that can contaminate water sources and harm ecosystems.
Statement C: Carbon black in some aerosols increases the amount of heat reflected back by the earth.- This statement is incorrect. Carbon black is a form of soot and is known to absorb heat rather than reflect it.
- The presence of carbon black in aerosols can contribute to global warming by absorbing solar radiation and trapping heat in the atmosphere.
Statement D: Burning coal, petroleum, and natural gas release nitrogen, carbon dioxide, and oxygen that trap heat in the earth.- This statement is incorrect. Burning coal, petroleum, and natural gas release carbon dioxide (CO2) and other greenhouse gases, such as methane (CH4) and nitrous oxide (N2O).
- These greenhouse gases trap heat in the atmosphere, leading to the phenomenon known as global warming.
- Oxygen is not a greenhouse gas and does not directly trap heat.
Therefore, the correct statement is:
B: Using sewers and treatment plants to remove human waste help in reducing pollution.