How do scientists know that the universe is expanding?
1. The Doppler effect shows stars with yellow shifted light
2. The Doppler effect shows stars with green shifted light
3.The Doppler effect shows stars with blue shifted light
4. The Doppler effect shows stars with red shifted light
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The process by which liquid water changes into water vapour is called what ?

(10 points) 1. cone 2. rectangle 3. triangle 4. circle 5. cylinder a. perpendicular cross section of a pyramid b. perpendicular cross section of a cylinder c. parallel cross section of a sphere d. shape created when a rectangle is rotated about the y-axis e. shape created when a right triangle is rotated about the y-axis

What conclusion can be drawn about the location of the city of syracuse? it was built on the coastline due to easy access to the red sea. it was built on the coastline due to easy access to the mediterranean sea. it was built inland to protect it from invaders sailing in from the mediterranean sea. it was built inland to protect it from invaders sailing in from the red sea.