Environment iss...

What does high intake of fluoride mainly affect?

Which of these pollutants are responsible for photochemical smog formed in congested metropolitan cities?

Which of the following is the correct match of environment-related disorder and its cause?

The recent reports of acid rain in big industrial cities are due to the effect of atmospheric pollution by

Formation of non-functional methaemoglobin causes blue-baby syndrome. This occurs due to

In the following question, two statements are given, namely Assertion (A) and Reason (R). Read both these statements and choose the correct option regarding them.
Assertion (A): Nitrogen fixation is achieved industrially by the Haber Bosch process in which H2 and N2 are mixed together at high temperature and pressure in the presence of a catalyst to form NH3.
Reason (R): Fertilisers like ammonium nitrites are prepared by this process.

Which of the following are the immediate concerns regarding carbon cycle?

a. Output rate of carbon locked in deposits of coal, petroleum and natural gas
b. Green house effect caused by CO₂
c. Increase in CO₂ on Earth's atmosphere by 12 to 14%
d. Increase in CO₂ decreasing primary productivity
e. Increase in photorespiration

Which of the following chemicals was responsible for 'itai itai' disease in Japan?

Which of the following gets reduced as a result of 'eutrophication'?

Due to greenhouse effect, the average temperature of Earth's atmosphere is gradually increasing. This is called global warming. Which of the following are not greenhouse gases?