Answer:
Dam and irrigation system and hydroelectric power are used in some countries.In many countries in this region technology has not been able to meet the demand for water.The desalination process is very costly to remove salt from water.
Explanation:
Over 2/3 of the argicultural land is used
Increased productivity is the main contributor to economic growth in U.S. agriculture.
<span>Answer:
The carbons on the closures are sp² hybridized, with a p-orbital for the 'second' bond in the twofold bond with their neighboring carbons.
They have those sp² orbitals covering with the s from the hydrogen, and they have a p covering in the pi bond with the neighboring carbon. They likewise have a sigma bond with the neighboring carbon I'll get to.
The center carbons each have two pi bonds with their neighbors, leaving sp hybridiaztion for the rest. So they have sp/sp² with the end carbons, and sp/sp with each other. (What's more, they likewise have p/p in the pi bonds).
So the total list is:
s/sp²
p/p
sp/sp²
sp/sp</span>
