Afarmer sprays insecticide on his crops to kill unwanted insects. most of the insects die, and the chemicals have the effect of damaging the dna of the insects that are not killed. which of these happened? (1 point)
a: sexual selection among the insects has changed the gene pool.
b: genetic equilibrium has been maintained.
c: mutations have arisen that may have altered allele frequencies.
d: individuals with new genes have immigrated into the population.

The answer to the given question above would be option C. Based on the given scenario above about a farmer who sprays insecticide on his crops to kill unwanted insects, and there was a damaging effect to the DNA to those insects that did not die, mutations have arisen that may have altered allele frequencies happened. Hope this helps.

The answer is atmosphere. there are four spheres of the earth: 1. geosphere (from greek word 'geo' = ground), 2. hydrosphere (from greek word 'hydro' = water), 3. biosphere (from greek word 'bio' = life), and 4. atmosphere (from greek word 'atmo' = air). a magnetosphere is a region of space around astronomical objects controlled by the magnetic field of that object. through the process of elimination, since lightning is present in the air, it can be found in the atmosphere.