Which process involves wind moving loose sediment? a abrasion b deflation c impact d plucking

The correct answer is option B, that is, deflation.

In geology, deflation refers to wind erosion of loose substance from the flat regions of dry, uncemented sediments like those found in dry lake beds, deserts, glacial outwash plains, and the floodplains.  

In the process, the silt-sized and the clay particles are taken up the wind's turbulent eddies and may be transported to hundreds of kilometers, which later gets settle to produce loess deposits .

The answer is B. Deflation

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex