Complete the following sentence. A grower who wishes to enhance plant growth by adjusting the carbon dioxide levels in the greenhouse will use a(n) gas analyzer to evaluate CO2 levels.

Why does the earth spin slowly, not faster? is it possible to prove it scientifically? can you prove it with math?

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.

One student group hypothesized that the dry baker's yeast must be alive. the temperature change, odor, and bubble foation, they said, indicated whych characteristic of life