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, 21.06.2019 19:50, Chapo3760
Consider the last statement in the prompt: "people take such environmental factors into account in their choices when deciding where to live." do all people have a choice as to where they live? what factor plays a key role in this decision and may therefore play a large role in determining quality of life?
Answers: 3
Biology, 22.06.2019 02:50, alisonn2004
What is the term for the two sets of chromatids formed in the parent cell a. haploid b. diploid c. gamete d. tetrad
Answers: 1
Biology, 22.06.2019 15:30, magicalforlife
Slow down transpiration by the stomata question 9 options: a guard cells; closing b chloroplasts; closing c guard cells; opening d chloroplasts; opening
Answers: 1
Mathematics, 21.02.2020 00:38
Mathematics, 21.02.2020 00:38