17. acid precipitation is caused by a mix of
a. respiration, carbonic acids, and seawater.
b. water, soil, and air.
c. sulfur dioxide, carbon dioxide, and nitrogen oxides.
d. hydrogen, oxygen, and saline.

Aseries of connections of food chain in an ecosystem is called a what

Which of the following is not a product of the second stage of glycosis

Many plants can reproduce asexually. which of these is an example of asexual reproduction in a plant? a. pine cones forming on a tree b. cross-pollination in a tomato c. roots sprouting from a potato d. night-blooming jasmine flowers