Who was the scientist who first proposed that all single celled organism should be put in their own kingdom?

Which of these resources is used worldwide to make construction products, pottery, and porcelain

Which process can increase the rate of greenhouse gas emissions into the atmosphere in response to a decrease in albedo

Which member of the following food chain will be least affected by ddt, a pesticide water pollutant, if bio-magnification is occurring? algae> zooplankton> crayfish> leopard frog> large mouth bass