The correlation between a cereal's fiber and potassium contents is r. What fraction of the variability in potassium is accounted for by the amount of fiber that servings contain?.

Avariable that is not being directly tested during an experiment should be changed varied experimented controlled

Some animals that try to adapt to climate changes eventually die due to starvation, as climate change alters the web.

Oil rich countries in the middle east cover about 4% of earths total land area but prossess about 48% of the worlds known oil reserves what is the main reason for high concentration of reserves in this part of the world