Which element makes up 50% of the earth’s crust? Which element makes up 50% of the earth's crust? Oxygen Aluminum Iron Silicon Correct! Wrong! Did You Know? Continue >> Share the quiz to show your results ! Share on Facebook Subscribe to see your results Show my results Which element makes up 50% of the earth’s crust? I got %%score%% of %%total%% right %%description%% %%description%% Loading...
3 What spacecraft takes astronauts into space, orbits the Earth and can be flown more than once? September 24, 2024
