5. I am slightly harder than gypsum with a metallic luster. You can find me in your #2 pencil.

What is the "great pacific garbage patch"? (a) a large area of marine debris concentrated by rotating ocean currents (b) a large area around the pacific rim where debris collects from natural disasters such as tsunamis (c) an area in the pacific ocean where trash is intentionally dumped due to lack of landfill availability (d) a large trash dump located in hawaii

What is the hottest recorded temperature on earth

Which theory suggested that the earth was once a signle supercontient that gradually that broke up into the contients that we know today