By increasing green house gases in the air like Carbon Dioxide, Methane, and Nitrous oxide.
<span>Perhaps surprisingly, lakes and rivers constitute a tiny proportion of the world's total freshwater, so answer (b) is correct. Most of the freshwater on our planet is in fact locked up in ice and glaciers, some 68%. The majority of the rest, 30%, is actually underground, in springs and other groundwater feeders. That leaves just 2% that makes up all the rivers, lakes, ponds and other visible freshwater reservoirs that we see in our day-to-day lives.</span>
Answer:
pangea
Explanation:
once all of the world was connected and we call that pangea then over time the continental plates moved making the earth formation we know now. the theory is that could the dinosaurs have moved while pangea was still a thing.
Answer:
Individuals that cannot produce the H substance appear to be type O even if they have functional A and/or iB alleles.
Explanation:
The H antigen is a precursor to the ABO blood group antigens, present in people of all common blood types. The Bombay phenotype (hh) does not express antigen H on red blood cells.The person with blood group O contain the H antigen but it remains unmodified remains unmodified.
Answer:
C. the effects of an earthquake on blood pressure
Explanation:
Natural experiments are observational studies in which participants are randomly assigned to groups that allow the researcher to draw causal relationships between an event and a factor. These experiments are used in studies where it would be unethical and unacceptable to subject human participants to such conditions. It is most times applied in epidemiological studies.
Since the researcher cannot control an earthquake which is a natural occurrence, this can be rightly described as a natural experiment. Controls are not used in this type of experiment.
