If there is a high death rate and large amount of
populations will likely decrease.

The correct answer is Emigration.

Emigration is the phenomenon in which a certain amount of population migrates from a place to another place.

This leads to decrease in population as, people are moving out from a place and death rate is also high.

Reason of emigration can be social pressure, lack of resources, lack of stability, et cetera.

i think it is true in my reasonment ..

1. loamy sand is about 80% sand with 10% clay and defined mostly by sand particles with some clay to provide structure and fertility. the sand particles are easily visible and the soil holds structure but breaks apart easily.

2. scott sand can improve his soil quality by incorporating more silt and organic matter into the soil. peat moss and organic matter can also be incorporated.