useless trivia: What Word Means: Intends - A Method - Wealth - Plural Of Mean, An Average?

Questions

Which element makes up 2.83% of the Earth's crust ?

Which element makes up 27.72% of the Earth's crust ?

Which element makes up 3.63% of the Earth's crust ?

Which element makes up 46.6% of the Earth's crust ?

Which element makes up 5% of the Earth's crust ?