A light disturbance in an ecosystem could include (1 point) O filling in and paving over a lake for a parking lot.
O cutting down a forest for wood manufacturing.
O a volcanic eruption.
O a tree falling over from a thunderstorm.

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

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