CBSE · Biology
Environmental Issues
22 practice questions for CBSE — 22 easy · 0 medium · 0 hard. Every question is graded instantly with a step-by-step solution when you miss it.
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MCQ
Eutrophication is due to overgrowth of -------------- at the instance of high phosphorus dissolved in water.
MCQ
The sound levels above ____ decibels may damage our ear drums?
MCQ
A jet plane on a single trip across the Atlantic uses ____ tonnes of oxygen and releases ____ tonnes of CO$_2$?
MCQ
According to Central Pollution Control Board, which particulate matter size in diameter (in micrometers) are responsible for causing the greatest harm to human health?
MCQ
Which equipment is most widely used for removing particulate matter present in industrial exhaust ?
MCQ
Which of the following is NOT an example of particulate pollutant?
MCQ
A college student standing near a traffic signal in a metropolitan city like Delhi suddenly felt dizzy and fainted. What might be the possible reasons for this?
MCQ
In 2001, Bharat stage II emission norms were set for CNG and LPG vehicles. It stipulates that emission of sulphur be controlled at $\_\_\_\_$ ppm in Diesel and $\_\_\_\_$ ppm in Petrol.
MCQ
In which part of India, the Jhum cultivation is followed?
MCQ
Which among the following pairs of gases is the major cause of the 'green house effect'?
MCQ
Which of the following is NOT the source of methane released to atmosphere?
MCQ
Which one among the following is NOT a reason for increase in concentration of carbon dioxide in the atmosphere?