Answer asap! if an astronaut walked on mars without wearing her spacesuit, would she die first from suffocation, boiling fluids, freezing, or something else?

Lets use that head of yours, what will happen if you walked on Mars? There is extreme low temperatures, and lack of oxygen. It would be oxygen because we need air to breath. Freezing takes time to have a strong impact.

Nothing is more important to us on Earth than the Sun. Without the Sun's heat and light, the Earth would be a lifeless ball of ice-coated rock. The Sun warms our seas, stirs our atmosphere, generates our weather patterns, and gives energy to the growing green plants that provide the food and oxygen for life on Earth.