<span>Across nearly seven million years, the human brain has tripled in size, with most of this growth occurring in the past two million years.</span>
The dependent clause of a sentence is a part of a sentence before or after a comma that can't stand alone. the dependent clauses are: " After he was injured by a stray ball," and "Though he hated Math,"
The larger the sample size the fewer errors would be made. it also averages out the results. depending on what the experiment is like i.e.: how would ___ nicotine affect the heart rate of 100 rats. your prediction/hypothesis would be closer to the experiment results with a larger test number of say 1000. but with a smaller sample size its hard to accurately predict and have more consistent resulta
• Political push factors of migration include war, political autocracy - moving to escape conflict and political persecution
• Economic push factors of migration include poverty and unemployment - moving to find work
• Environmental push factors of migration include natural disasters such as earthquakes, volcanoes, hurricanes and tsunamis - moving to safety
• Social Push factors of migration include lack of education, medical facilities, high crime rate - moving somewhere for a better quality of life or to be closer to family or friends