Question

utah is home to pando, a colony of about 47,000 quaking aspen trees that all share a single root system. pando is one of the largest single organisms by mass on earth, but ecologists are worried that its growth is declining in part because of grazing by animals. the ecologists say that strong fences could prevent deer from eating young trees and help pando start thriving again. according to the text, why are ecologists worried about pando? it isnt growing at the same rate it used to. it isnt producing young trees anymore. it cant grow into new areas because it is blocked by fences. its root system cant support many more new trees.

Explanation:

The text states that ecologists are worried as Pando's growth is declining. This implies it isn't growing at the same rate as before, due in part to animal grazing. There is no mention of it not producing young trees, being blocked by fences from growing into new areas, or its root - system being unable to support more new trees.

Answer:

It isn't growing at the same rate it used to.