Please help. I'll give brainliest. Write a condensed structural formula for 2,2-dimethylbutane.

In an energy pyramid, which level has the most available energy?

Which metal exist in liquid state and can be cut with knife ?

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space