The population of the earth()increasing fast. One third of the population here() worke

The milder winters of recent years make the pine beetle population ______.A．decreaseB．incr

There is a fall in the number of students who take this major.A.decreaseB.riseC.topD.incr

In order to improve the state of me undernourished population,______.A．people should incre

The human population on Earth has grown to the point that it is having an effect on Earths

The government of the developed countries may preferA．a stable population.B．a slowly-incre

The worlds population continues to grow. There now are about 4 billion of us on the earth