5. Minimata disease is due to pollution by (1) Organic waste into drinking water (2) Oil spills in oceans (3) Industrial waste mercury into fishing water (4) Entry of Cadmium […]
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What Is Biogas Made Of? Understanding the Main Components and Their Importance
Biogas consist of- (1) CH4, SO2and H2 (2) CO2, Alcohol and H2 (3) CH4and CO2 (4) CFC, CO2, N2 Biogas is a versatile and increasingly important renewable energy source, produced […]
Understanding Which Light Spectrum Greenhouse Gases Absorb: Infrared Rays and the Greenhouse Effect
Which of the following light spectrum is absorbed greenhouse gases? (1) UV rays (2) Infrared and Visible (3) Infra red rays (4) Visible light Greenhouse gases play a central role […]
Carbon Dioxide: The Major Driver of Global Warming and Its Environmental Impact
Which gas is major reason for global warming? (1) Carbon dioxide (2) Methane (3) Ozone (4) ChloroFloro Carbons Global warming is one of the most pressing environmental challenges of our […]
Lichens as Nature’s Air Quality Monitors: Why They Are Sensitive Indicators of Air Pollution
Which of the following organisms may be used as sensitive indicators of air pollution? (1) Members of the Chlorophyta (2) Lichens (3) Photosynthetic bacteria (4) Slime molds Air pollution is […]
Ecotones: Identifying the Incorrect Statement
Which one of these statements is NOT CORRECT with respect to ecotones? (1) Intertidal zones and estuaries are two examples of ecotones (2) They are transitional areas of vegetation between […]
Ecotones: Transition Zones with High Species Diversity
Which one of the following statements is correct with reference to ecotones? (1) Ecotones are rich in endemic species and only contain species not found in surrounding ecosystems. (2) Ecotones […]
Simpson’s Diversity Index: Comparing Alpha Diversity in Two Communities
Following table shows the number of individuals of different species in two communities, X and Y. Based on the above data and the Simpson’s Diversity Index which one of the […]
Understanding Population Pyramids: How Birth and Death Rates Shape Growth Trends
Given below are the population pyramids of three different populations A, B and C depicting the relationship between birth and death rates in each. Based on the population pyramids given […]
Following table shows the presence (+) or absence (-) of five species in three communities (A, B, C): Based on the above, which of the following is the correct order […]


