Environmental Science The earth's first atmosphere was composed primarily of: Oxygen and water vapor Hydrogen and helium Argon and nitrogen Carbon dioxide and water vapor Oxygen and water vapor Hydrogen and helium Argon and nitrogen Carbon dioxide and water vapor ANSWER DOWNLOAD EXAMIANS APP
Environmental Science Which gas is likely to be reduced in the atmosphere by deforestation? Carbon dioxide Oxygen Nitrogen Sulphur dioxide Carbon dioxide Oxygen Nitrogen Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Environmental Science The destruction of habitat of plants and animals is called habitat loss endemism endangered species flood habitat loss endemism endangered species flood ANSWER DOWNLOAD EXAMIANS APP
Environmental Science What is the cause of the Exxon Valdez? a ship which wrecked on the coast of India a plane which crashed and caused death of human life Oil Tanker which sank in 1989 along the coast of Alaska and marine life seriously affected. none of these. a ship which wrecked on the coast of India a plane which crashed and caused death of human life Oil Tanker which sank in 1989 along the coast of Alaska and marine life seriously affected. none of these. ANSWER DOWNLOAD EXAMIANS APP
Environmental Science The phenomenon of occurrence of additional species found in the ecotone or transitional zone between adjoining ecosystems is known as _________ Root effect Coolidge effect Raman effect Edge effect Root effect Coolidge effect Raman effect Edge effect ANSWER DOWNLOAD EXAMIANS APP
Environmental Science The pyramid of numbers is inverted in the case of lake ecosystem Grassland ecosystem Forest ecosystem parasitic food chain lake ecosystem Grassland ecosystem Forest ecosystem parasitic food chain ANSWER DOWNLOAD EXAMIANS APP
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