What is the main source of air pollution in the united states? list 3 examples.

Aresearcher has developed two stains for use with seed plants. one stains sporophyte tissue blue; the other stains gametophyte tissue red. if the researcher exposes pollen grains to both stains, and then rinses away the excess stain, what should occur? a) the pollen grains will be pure red.b) the pollen grains will be pure blue.c) the pollen grains will have red interiors and blue exteriors.d) the pollen grains will have blue interiors and red exteriors.

Acceleration is a direct result of a.) balanced forces b.) unbalanced forces c.) gravity d.) velocity

How will you manage your time to accomplish the necessary tasks both on the job and at home?