What is the main aim of conservation?

Q. Assertion :Our main aim of conservation is to preserve the biodiversity. Reason: Loss of biodiversity leads to loss of ecological stability.

Q. With reference to the Aichi Biodiversity Targets, consider the following statements.
$1$. It aims to bring pollution, including from excess nutrients to levels that are not detrimental to ecosystem function and biodiversity.
$2$. It aims to control or eradicate invasive alien species on priority basis.
Which of the statement(s) given is/are correct?

Q.

__refers to efforts taken to reduce energy consumption in order to preserve resources for the future and reduce environmental pollution.

Q. Q94. With reference to the water (prevention and control of pollution) act 1974, consider the following statements.
1. It maintains the wholesomeness of the aquatic resources.
2. It prescribes the function of the Central Pollution Control Board.
3. The function of CPCB (Central pollution Control Board) is to advise the central and state government on any matter concerning prevention control and abatement of water pollution.
4. The CPCB also provides technical assistance and guidance to the state pollution control board.
Select the correct answer using the codes given.