ECOLOGY
BIOMES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A lot of precipitation causes floods
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This biome has the longest summer season
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Permafrost traps the carbon dioxide in the soil which causes plant growth
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Human impact disrupting the life cycle of native organisms
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Detailed explanation-1: -When permafrost is frozen, plant material in the soil-called organic carbon-can’t decompose, or rot away. As permafrost thaws, microbes begin decomposing this material. This process releases greenhouse gases like carbon dioxide and methane to the atmosphere.
Detailed explanation-2: -ADAPTATIONS FOR A POLAR ENVIRONMENT Plants also grow close to the ground and to each other, a strategy that helps to resist the effects of cold weather and reduce damage caused by wind-blown snow and ice particles.
Detailed explanation-3: -Permafrost is the frozen soil, which melts towards the surface in summer, but remains frozen at depth. It is therefore, difficult for fertile soils to form as dead plant matter doesn’t reach the land’s surface to be decomposed, resulting in a lack of nutrients needed for plant growth.
Detailed explanation-4: -Only plants with shallow root systems grow in the Arctic tundra because the permafrost prevents plants from sending their roots down past the active layer of soil. The active layer of soil is free from ice for only 50 to 90 days. Arctic plants have a very short growing season.