Question 4
what is the life cycle of a massive star?
giant, dwarf, black ho...
Biology, 22.11.2019 04:31 hddjdudusu
Question 4
what is the life cycle of a massive star?
giant, dwarf, black hole
black hole, dwarf, giant
dwarf, black hole, giant
dwarf, giant, black hole
question 5
i am an astronomical body; i have my own gravity, and things orbit around me, but i do not produce energy through fusion. what am i?
a star
a galaxy
a planet
an asteroid
question 6
i am made of rock, iron, ice, and gas. when i get too close to the sun, the gas leaves a trail of dust and debris behind me. what am i?
a comet
a meteor
an asteroid
a moon
question 7
what are light-years used to measure?
time
short distances
far distances
light intensity
question 8
what do scientists use to look at astronomical bodies?
optical telescopes
radio telescopes
gamma telescopes
microscopes
question 9
what was one of the inventions galileo galilei was famous for?
the microscope
the telescope
the rocket
the airplane
question 10
which of the following statements about telescopes is false?
the prefix "tele-" means "far."
radio telescopes scientists hear noise from outer space.
gamma ray telescopes are the most widely used telescopes in astronomy.
optical telescopes use curved elements like mirrors to focus visible light from the electromagnetic spectrum.
Answers: 2
Biology, 22.06.2019 01:00
How does this experiment explain why it is often milder in areas such as coastal maryland while areas such as kansas or iowa have more extremes in temperature
Answers: 3
Biology, 22.06.2019 02:40
Round seeds and yellow seed color are dominant to wrinkled seeds and green seed color. which punnett square represents the correct way to set up the cross rryy ´ rryy? 
Answers: 1
Social Studies, 23.06.2019 15:50
History, 23.06.2019 15:50
Biology, 23.06.2019 16:00
History, 23.06.2019 16:00
Chemistry, 23.06.2019 16:00
Mathematics, 23.06.2019 16:00