Give 3 examples of how technology has influenced human population growth

Alternating current electricity. This allowed electricity to flow further than Edison's first DC approach. 

Railroads - allowed for transportation of materials to growing small cities, and large cities to become larger.

Antibiotics and antiviral medicines. - stopping deadly diseases and bacteria from spreading. This helped with many problems that would normally terminate 33% of populated areas that are infected.

Alternating current electricity. This allowed electricity to flow further than Edison's first DC approach.

Railroads - allowed for transportation of materials to growing small cities, and large cities to become larger.

Antibiotics and antiviral medicines. - stopping deadly diseases and bacteria from spreading. This helped with many problems that would normally terminate 33% of populated areas that are infected.

the answer to your question is a plant

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.