Scientists use spectroscopy to study the composition of stars.
From spectroscopy, scientists
determined that most stars are
made of hydrogen and helium.
How does this evidence support or
refute the Big Bang Theory?

What type of electromagnetic radiation has a shorter wavelength than blue light

An observation that requires measurement is called quantitative observable or qualitative

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