EASY
Earn 100

Which of the following are biomagnified at different levels of the food chain?

i. Heavy metal

ii. Aerosol

iii. DDT

iv. Greenhouse gas

50% studentsanswered this correctly

Important Questions on Human and Environment

EASY
Biology>Ecology>Human and Environment>Environmental Pollution
The minimum proportion of impurities that made the drinking water unfit for human consumption is____________
EASY
Biology>Ecology>Human and Environment>Environmental Pollution
Which ONE of the following can NOT cause eutrophication of lakes?
EASY
Biology>Ecology>Human and Environment>Environmental Pollution
Eutrophication is the natural ageing of lake by _______
EASY
Biology>Ecology>Human and Environment>Environmental Pollution
Eutrophication of water bodies leading to killing of fishes is mainly due to non-availability of
EASY
Biology>Ecology>Human and Environment>Environmental Pollution
A lake which is rich in organic waste may result in
EASY
Biology>Ecology>Human and Environment>Environmental Pollution
Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers?
EASY
Biology>Ecology>Human and Environment>Environmental Pollution
The maximum concentration of harmful chemicals is expected to be found in organisms
EASY
Biology>Ecology>Human and Environment>Environmental Pollution
Which, among grass, goat, tiger and vulture, in a food chain, will have the maximum concentration of harmful chemicals in its body due to contamination of pesticides in the soil?
EASY
Biology>Ecology>Human and Environment>Environmental Pollution
One of the following is called as 'Terror of Bengal'.
EASY
Biology>Ecology>Human and Environment>Environmental Pollution
The biomagnification of which pollutant causes a decline in the bird population?
EASY
Biology>Ecology>Human and Environment>Environmental Pollution
An increase in the concentration of the toxicant at successive trophic levels is known as:
MEDIUM
Biology>Ecology>Human and Environment>Environmental Pollution
Rachel Carson's famous book ''Silent Spring'' is related to:
EASY
Biology>Ecology>Human and Environment>Environmental Pollution
CO2 acts as a greenhouse gas because:
HARD
Biology>Ecology>Human and Environment>Environmental Pollution
Match the items given in Column I with those in Column II and select the correct option given below:
 
  Column – I   Column –II
a. Eutrophication i. UV-B radiation
b. Sanitary landfill ii. Deforestation
c. Snow blindness iii. Nutrient
d. Jhum cultivation iv. Waste disposal
EASY
Biology>Ecology>Human and Environment>Environmental Pollution
Which of the following is not one of the prime health risks associated with greater UV radiation through the atmosphere due to depletion of stratospheric ozone?
EASY
Biology>Ecology>Human and Environment>Environmental Pollution
Which of the following pairs of gases is mainly responsible for green house effect?
EASY
Biology>Ecology>Human and Environment>Environmental Pollution
Chlorofluorocarbons (CFCs) are believed to be associated with cancers because:
EASY
Biology>Ecology>Human and Environment>Environmental Pollution
In an area where DDT has been used extensively, the population of birds declined significantly because -
EASY
Biology>Ecology>Human and Environment>Environmental Pollution
The highest DDT concentration in aquatic food chain shall occur in
EASY
Biology>Ecology>Human and Environment>Environmental Pollution
A river with an inflow of domestic sewage rich in organic waste may result in: