Question

Q. 6 Answer the following questions -
1) Give two reasons why wild animals are dying out.
Ans.
2) Explain how refrigerator and air conditioners harm the atmosphere.
Ans.
3) Write the adverse effect of using fertilisers in agre-culture?
Ans.​

Answer 1

Answer:

ans. 1

Explanation:

animals are dying because of lack of food and also due to climatic changes

ans . 2

the gas which refrigerator and air conditioner through is chlorofluorocarbons (CFC) which harm the atmosphere in a very drastic manner

ans. 3

effects are

1. It destroys the fertility of the soil

2. by using the excess amount of fertilizer (urea,DAP)

Answer 2

1) Humans also cause other species to become extinct by hunting, overharvesting, introducing invasive species to the wild, polluting, and changing wetlands and forests to croplands and urban areas. Even the rapid growth of the human population is causing extinction by ruining natural habitats.

2) They have a negative impact on the environment as they are part of the greenhouse gases that trap heat and lead to depletion of the ozone layer. ... In addition to the negative effects on the environment, air conditioning can also become a health hazard especially to those that are absolutely reliant on it.

3) Use of fertilizers and nutrients is one way to supply achieve this. The presence of heavy metals affects the plant growth. Excess use of fertilizers may lead to heavy metal accumulation, eutrophication and accumulation of phosphate and nitrate. Excessive phosphorus is potential threat to water quality.Fertilizers replace the nutrients that crops remove from the soil. Without the addition of fertilizers, crop yields and agricultural productivity would be significantly reduced. That's why mineral fertilizers are used to supplement the soil's nutrient stocks with minerals that can be quickly absorbed and used by crops.