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 14:20, makaylahunt
Which of the following is most likely the result of an organism having lipids in its body a) water cannot be absorbed through the surface of a leaf b)human eats fruits to get a quick source of energy c) a sheep sleeps for more hours in the winter d) a warm river is filled with fish and algae
Answers: 1
Biology, 22.06.2019 17:30, leilakainani26
What type of cell division is used to replace old cell?
Answers: 2
Biology, 22.06.2019 18:00, playaajosh
To test the responsiveness of the kidneys, scientists have designed an experiment tracking urine output of people during a normal day, while regulating the in-take of water by mouth. what would be an appropriate hypothesis for this experiment?
Answers: 3
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