Environmental Science The aurora is produced by: Reflections of sunlight by polar ice fields Burning oxygen caused by the intense sunlight at high altitude Scattering of sunlight in the upper atmosphere Fast-moving charged particles colliding with air molecules The combination of molecular and atomic oxygen to form ozone Reflections of sunlight by polar ice fields Burning oxygen caused by the intense sunlight at high altitude Scattering of sunlight in the upper atmosphere Fast-moving charged particles colliding with air molecules The combination of molecular and atomic oxygen to form ozone ANSWER DOWNLOAD EXAMIANS APP
Environmental Science Which of the following region has maximum diversity? taiga mangrooves coral reefs temperate rainforest taiga mangrooves coral reefs temperate rainforest ANSWER DOWNLOAD EXAMIANS APP
Environmental Science A high Biological Oxygen Demand (BOD) indicates that: water is pure absence of microbial action High level of microbial pollution Low level of microbial pollution water is pure absence of microbial action High level of microbial pollution Low level of microbial pollution ANSWER DOWNLOAD EXAMIANS APP
Environmental Science What is UNCED? United Nations Conference on Environmental Day None of these United Nations Conference on Education, United Nations Conference on Environment and Development United Nations Conference on Environmental Day None of these United Nations Conference on Education, United Nations Conference on Environment and Development ANSWER DOWNLOAD EXAMIANS APP
Environmental Science Trophic levels are formed by Only carnivorous Only plants only animals Organisms linked in food chain Only carnivorous Only plants only animals Organisms linked in food chain ANSWER DOWNLOAD EXAMIANS APP
Environmental Science A Hawk that eats a frog is a Tertiary Consumer Primary Consumer Secondary Consumer Producer Tertiary Consumer Primary Consumer Secondary Consumer Producer ANSWER DOWNLOAD EXAMIANS APP
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