EVERYDAY SCIENCE

SCIENCE

ECOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Primary succession begins where there was no ecosystem and no soil such as
A
a severe storm
B
a volcanic eruption
C
an old farm is abandoned
D
a forest fire
Explanation: 

Detailed explanation-1: -Primary Succession is when a new area of land is populated by a group of species for the first time. This land is barren with no soil. The only species that could survive in this barren land are what are called Pioneer Species. These species are low maintenance-requiring minimum resources to survive.

Detailed explanation-2: -Primary succession occurs after a volcanic eruption or earthquake; it involves the breakdown of rocks by lichens to create new, nutrient-rich soils. The first species to colonize an area after a major disturbance are called pioneer species; they help to form the new environment.

Detailed explanation-3: -Primary succession is ecological succession that begins in essentially lifeless areas, such as regions in which there is no soil or where the soil is incapable of sustaining life (because of recent lava flows, newly formed sand dunes, or rocks left from a retreating glacier).

Detailed explanation-4: -Primary succession begins when no plant life is present on the landscape, such as after a lava flow or glacial retreat. Over centuries, soil forms and deepens and successive communities of plants grow.

Detailed explanation-5: -Primary succession occurs when new land is formed or bare rock is exposed, providing a habitat that can be colonized for the first time. For example, primary succession may take place following the eruption of volcanoes, such as those on the Big Island of Hawaii. As lava flows into the ocean, new rock is formed.

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