Is a theory describing earth's plates, including how and why they move about earth's surface. select one: a. continental drift b. plate tectonics c. seafloor spreading

Compare the shapes of the bones of the human skull with the shapes of the bones of the human leg. how do the shapes differ? why are the shapes important?

Organelles found in plant cells that function through photosynthesis to produce glucose from carbon dioxide and water are called — question 21 options: chloroplasts guard cells photosynthons

When fossil fuels are burned, carbon dioxide is released. how does this gas impact the environment?