The basic ingredients used to make a thunderstorm are moisture, unstable air and lift.
Therefore it should be: A. A stationary front
Unconventional or non criteria pollutants can include several toxic or non-toxic elements. Toxic chemicals, such as benzene, beryllium, PCBs, asbestos and vinyl chloride are man-made unconventional toxic pollutants that are regulated by the EPA. Other forms of unconventional pollution include noise, unpleasant odors and light pollution as well as aesthetic factors.
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I think it is C, since it does occur on land life, and I think it also occurs in marine life.
I think that one difference between eukaryotic and prokaryotic cells is that eukaryotic cells have membrane enclosed structures called organelles, which are lacking in prokaryotic cells. Eukaryotes can be single-celled or multicellular organisms like human beings, plants, fungi, and insects. Prokaryotes on the other hand include bacteria and archaea, they do not contain a nucleus or any other membrane bound organelles.
These terms represent the stages that occur in alternation of generation. Alternation of generation describes the process in the life of some eurkaryotes [mostly plants and protists], it refers to the alternation in form which occur in these organisms. One form is usually diploid with 2n chromosomes, this is called the sporophyte while the other form is haploid with only one set of chromosomes and it is called the gametophyte.
The spores go through mitosis and produce gametophyte, the gametophyte produce gamete. Two gametes fuse together to become a zygote.<span />
