Author Question: An estimated ten million hectares of land are abandoned every year due to inefficient irrigation ... (Read 28 times)

go.lag · **on:** Sep 10, 2018

An estimated ten million hectares of land are abandoned every year due to inefficient irrigation schemes.

Indicate whether this statement is true or false.

Question 2

One of the potential difficulties in reducing CFC gases is that calculations have to consider the continued output of already existing devices in addition to new CFC sources.

Indicate whether this statement is true or false.