辞洋HA114.NET

That keeps Chlamydomonas from wasting resources during hard times, increasing its likelihood of reproducing over the long haul.

It has always been more about creating demand for real estate in places where water was scarce or non-existent.

As we wake up to climate change and resource depletion, though, interest in how insects manage their built environments is reawakening.

eg. In an era of scarcity, the military should not be exempt from the choices that will be forced upon everyone else, however.

Last month, Jakarta seized some two dozen barges and tugboats preparing to transport granite to its tiny resource-poor neighbour.

Meanwhile, around a fifth of the world's population suffers from a shortage of drinking water and that fraction is expected to grow.

in recent years there have been chronic freshwater shortages around the world , especially in west china.

Until recently, the uptake of routine voluntary testing in resource-poor countries was low, but progress is now being made.

Emphasis on something implies the scarcity of resource. The scarcity is the result of human's unchained lust.