Answer:
Climate and vegetation vary with latitude and altitude of an area. Latitude measures distance from the equator; altitude measures elevation above sea level. ... Deserts have little precipitation and little vegetation. They are found in tropical, temperate, and Polar Regions.
This is an experiment where the researcher manipulates one variable, and control/randomizes the rest of the variables. It has a control group, the subjects have been randomly assigned between the groups, and the researcher only tests one effect at a time.
Answer:
Ann atom of hydrogen consists of one proton surrounded by one electron
Answer:
Mantenha sempre as mãos limpas
Siga dicas para tossir e espirrar sem contaminar.
Evite tocar em seu nariz, olhos e boca com as mãos sujas. ...
Evite tocar em seu nariz, olhos e boca. ...
Evite o contato com pessoas que estão doentes, pois podem estar contidas.
