Answer:
Soil salinity can be reversed, but it takes time and is expensive. Solutions include improving the efficiency of irrigation channels, capturing and treating salty drainage water, setting up desalting plants, and increasing the amount of water that gets into aquifers. Mulches to save water can also be applied to crops.
Explanation: Hope this helps
A redshift can be described as a galaxy that is moving away form us. So the correct one is D.
Answer:
At the point when a oceanic plate crashes into a continental plate the crust shaping the oceanic plate bents and get pulled under the continental crust. This is on account of the rocks that frame the oceanic crusts are denser and more slender than the rocks that shape the continental crust. The procedure by which the oceanic crust is pulled under the continental crust is called subduction and the zone at which this happens at the plate boundaries is known as the subduction zone. At the subduction zone where the oceanic crust sinks underneath the continental crust, a profound oceanic trench or valley is made.
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