Air is composed of gases that are so well mixed you cannot tell them apart. this is called a what mixture

answer; i believe its echoic memory,it is believed to last three to four seconds; good luck

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

i hope this

i think its through the fallopian tube

answer; aerobic conditions; citric acid cycle (krebs cycle) electron transport chain;         anaerobic conditions; fermentation; both glycolysis;