Question

Of the following items, the last to occur when toxic chemicals are discarded into a stream is that the chemicals

a.
pose a threat to human health.
b.
enter the food chain.
c.
are carried into a lake.
d.
harm aquatic plants and animals.
e.
cause birth defects in offspring

Answer 1

The last effect to occur when toxic chemicals are discarded into a stream is the birth defects in offspring. This is because offspring take months to be produced and all the others are somewhat immediate effects.