Is mechanical weathering a chemical or physical process?

The influenza virus cause the flu, but not other diseases. why?

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

(99 points) be serious! how do farts work? how do you fart without it stinking? serious answers only