Formaldehyde and asbestos can alter DNA base sequences in human cells. Based on this research, the use of chemicals has been greatly reduced because they A Group of answer choices

B may act as fertilizers and increase the growth of algae in ponds.

C have been replaced by more toxic compounds.

D are capable of causing mutations in humans.
interfere with the production of similar chemical compounds in animals.

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When does a spring tide occur? question 9 options: they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur twice a year in the spring and fall. they occur on the date of the vernal equinox each year, no matter what stage the moon is in. this is why they are called spring tides. they occur when the sun, moon, and earth are at 45-degree angles from each other. this happens once every spring. they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur all year long.