After the aswan high dam was built on the nile river, the rate of parasitic worm infection doubled in the human population near the dam. as a result of building the dam, the flow of the nile changed. this changed the habitat, which resulted in an increase in its population of a certain aquatic snail. the snails, which were infected, released larvae of the worm. these larvae then infected humans. this situation best illustrates that:

answer by yourhope:

hi! : )

in which structure in the nucleus are ribosomes made?

b) nucleolus!

: )

sulfur dioxide

explanation: acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. these substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.