Top 150+ Solved Environmental Issues MCQ Questions Answer
Q. When huge amount of sewage is dumped in a river the BOD will
a. Increase
b. Decreases
c. Remains same
d. Drastic decrease
Q. What do you understand by greenhouse effect?
a. Increase in temperature due to increase in O2 concentration of the atmosphere
b. Decrease in temperature due to decrease in O2 concentration of the atmosphere
c. Increase in temperature due to increase in CO2 concentration of the atmosphere
d. Decrease in temperature due to decrease in CO2 concentration of the atmosphere
Q. In which sphere of atmosphere the ozone layer is seen?
a. Troposphere
b. Stratosphere
c. Homosphere
d. Thermosphere
Q. The release of phosphates and nitrates in lakes and ponds leads to
a. Reduce algal growth
b. Eutrophication
c. Nutrient enrichment
d. Both B and C
Q. Deforestation has an alarming effect on
a. Soil erosion
b. increase in grazing area
c. weed control
d. All of these
Q. Amruta Devi Bishnoi Wild life Protection award has recently instituted for
a. Extraordinary courage and dedication in protecting wildlife
b. Extraordinary courage and dedication in protecting plants
c. Extraordinary courage and dedication in protecting wild animals
d. Extraordinary courage and dedication in Protecting Environment
Q. Which one of these has highest levels of DDT deposition?
a. Eel
b. Phytoplankton’s
c. Sea gull, Eagle
d. Crab
Q. The stress reaction is caused by
a. Air pollution
b. Nuclear pollution
c. Water pollution
d. Noise pollution
Q. Deforestation may reduce the chances of…. (CBSE1990)
a. Rain fall
b. Frequent cyclones
c. Erosion of surface soil
d. Frequent landslide
Q. Most severe environmental hazard to mankind is due to…. (DPMT1986)
a. Air pollution
b. Radioactive pollution
c. Water pollution
d. Noise pollution
Q. Which is biodegradable pollutant?
a. Mercury salt
b. Polythene bags
c. Domestic sewage
d. Aluminum canes