A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactaant and product are involved

Which of these is the most likely consequence of falling petroleum price

Match each description to the appropriate biome. tropical savanna desert tropical rain forest taiga tundra has sparse vegetation and very cold temperatures located near the equator and contains trees that form dense canopy layers is very hot and dry, and has plants that need little water has cold winters, heavy snowfall and is dominated by conifers has warm temperatures and is dominated by grasses

Describe how a student should adjust the microscope to see the cells on a slide more clearly?