Investigating Space

Investigating Space
The Earth’s atmosphere acts as a filter to remove
radiation
gamma rays
x-rays
beta-rays
Author: rikazzz Comment
Investigating Space
In fact our earth is just a tiny speck in a vast
space
universe
galaxy
solar system
Author: rikazzz Comment
Investigating Space
When all the hydrogen gas used up, the sun would start to
cool down
shrink
grow bigger
melt
Author: rikazzz Comment
Investigating Space
The mass of ‘Sirus A’ is
1.5 times of the Sun
1.8 times of the Sun
2.3 times of the Sun
2.5 times of the Sun
Author: rikazzz Comment
Investigating Space
The spinning movement of earth is called
revolution
rotation
spinning
orbiting
Author: rikazzz Comment
Investigating Space
The closest star to the earth is
Sirius
Sun
Achemar
Aldebaran
Author: rikazzz Comment
Investigating Space
Finally, the sun will cool down and end its life as a cold, dark body called
black moon
white dwarf
black dwarf
white comet
Author: rikazzz Comment
Investigating Space
A black hole may pull matter in from a nearby
galaxy
cluster
comet
star
Author: rikazzz Comment
Investigating Space
The main source of near-real-time solar data for space weather prediction is
Helios A
Genesis
SOHO
Alpha
Author: rikazzz Comment
Investigating Space
As compare to Sirius A, the Sirius B is
much bright
much dim
normal
small
Author: rikazzz Comment

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