Pretty sure the answer is A
The right option is; a. soil degradation
Soil degradation most plausibly accounts for the reduction in corn yield.
Soil degradation is an environmental problem in which the condition or quality of soil is reduced due to its improper use usually for agricultural or industrial purposes. Soil degradation can reduce the physical, chemical and biological quality of soil. Soil degradation results in loss of organic matter, soil contamination, fertility decline, and soil acidity or alkalinity which can greatly affect agricultural productivity.
Answer:
1. A tundra is a type of biome where the tree growth is hindered by low temperatures and short growing seasons.
2. A savanna or savannah is a mixed woodland-grassland ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close.
3. An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea.
In my opinion, Switzerland comes closer to having a pluralist society. As a federation, it has four national languages (German, French, Italian, and Romansh) that are equal in status, even though the majority of its citizens' native language is German, and Romash is spoken by only 0.6% of the population. Each of the 26 cantons has chosen one or more of them as official languages. The cantons have a very high level of autonomy and independence. So, the society is pluralist because the federal government recognizes the differences that exist among the population, and has engraved those differences in its constitution.
Answer:
A delta is the triangular deposit at the end of a river (where it empties into another body of water). As the river is flowing, it carries sediment and water downstream and deposits it. The delta itself is formed by the sediment building up into a landform.
