Why might rain forests in south america and near the equator be so productive? list two reasons. think about the climate and weather near the equator and in a rain forest. (4 points)

Check all that apply diatoms are marine algae that have a shell made of silica, what are some of the uses of the silica shell after the diatoms die? 1.the shells make up the diatomaceous earth used in filters 2.it can be used as an ingredient in abrasives 3.they are used in food products 4.the shells can be used in some insulating materials

When a human or animal consumes food, the carbon in that food is most likely to be converted into which of the following elements? a. carbon remains carbon b. nitrogen c. oxygen d. hydrogen

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?