Ireally need its only 1 question and i will up vote!

which of the following can be genetically engineered?

plants

animals

micro-organisms

all of the above

Witch of the following volcano hazards is made up of rocky particles about the size of a grain of sand

What is an additional type of erosion found at the coast? what does it mean?

The first atomic explosion was detonated in the desert north of alamogordo, new mexico, on july 16, 1945. what percentage of the strontium-90 ( yr) originally produced by that explosion still remains as of july 16, 2016?