When too much water has accumulated in the soil it surfaces and is known as

Water logging is the condition, in which too much water accumulates in the soil surface. Water logging can result because of over- irrigation of the agricultural field, the increase of the ground water level and flood. Water logging exerts negative impact on the growth of plants and underground microbial and insect population as water gets accumulated in the soil above it's water retention or absorption capacity. It blocks the pores of soil, where the roots of plants, underground soil microbes and insects receives atmospheric oxygen. It may result in death of soil dependent flora and fauna species.

answer; a male inherits only one allele of the x-linked gene controlling hair color;

in 1859, charles darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. he defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".