Which of the following is wrong with respect to our responsibility as a human being to protect our environment?

Among the following,the one that is not a greenhouse gas is

Which of the following reacts with haemoglobin in the blood to form carboxyhaemoglobin?

Given below are two statements :
Statement $I:$ The nutrient deficient water bodies lead to eutrophication.
Statement $II:$ Eutrophication leads to decrease in the level of oxygen in the water bodies.
In the light of the above statements,choose the correct answer from the options given below:

Which principle of green chemistry highlights that the protection of a selective group is not advantageous?

The possibility of photochemical smog formation will be minimum at