Question

question 4
a _______ is used for determining the chemical composition of stars.
radar
satellites
spectrograph
spectroscope
question 5
the bending of light as it passes through a prism is _______.
spectrum
reflection
an array
refraction

Explanation:

For Question 4, a spectrograph is used to analyze the light from stars to determine their chemical composition by breaking the light into its component wavelengths. Radar is used for detecting objects by sending radio - waves and satellites are for various purposes like communication, Earth - observation etc. A spectroscope is a similar instrument but a spectrograph records the spectrum.
For Question 5, the bending of light as it passes through a prism is called refraction. Reflection is the bouncing back of light, spectrum is the range of colors or wavelengths produced, and an array is a collection of elements.

Answer:

Question 4: C. spectrograph
Question 5: D. refraction