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the most earthquake-related deaths are associated with which of the following?

1points

a

liquefaction

b

seismic waves< < <

c

damage to buildings or other structures

d

tsunamis

which of the following events are secondary effects of an earthquake?

1points

select the 3 correct answers.

a

tornadoes

b

landslides< <

c

fires

d

tsunami<

for the first one

the answer is c because buildings crush people

the second one is the last 3

1) gene flow

- it is described as the transfer of genes from one population to another population so that frequency of gene is increased.

-a zebra migrates to join a different herd of zebras.

2) natural selection

- a mechanism of evolutionary change in which individuals with advantageous traits survive and reproduce whereas the others ( those that can not adapt) eliminate from the population.

-competition for sunlight leads to taller trees.

3) mutation

- permanent change in the nucleotide sequence of dna ( genetic material) that could have harmful or useful consequences.

-the dna of a snake changes to make its venom stronger.

4) genetic drift - it is a random phenomenon ( that occurs by chance such as fire) that results in change in the gene frequency in a small population.    

-a grassfire randomly sweeps through a population of buffalo and kills most of the animals.

explanation: