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science

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biology,chemistry,physics,ecology,astronomy laws

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Questions 9

Answers

1
which of the following natural disaster is caused by the disturbance in the Earth's crust?
drought
flood
tide
earthquake
2
which is the second layer of the Earth?
outercore
core
mantle
crust
3
which formula is used to find the speed?
distance and time
distance and sound
distance and velocity
distance and mass
4
what is evaporation?
when water gets heated and becomes water vapor
when it rains
when water comes from the river and joins the ocean
when water cool's down and becomes water droplets
5
who created the heliocentric model?
copernicus
aristotle
kepler
galileo
6
what is the meaning of heliocentric?
the theory of an sun centered universe
the theory of an saturn centered universe
the theory of an jupiter centered universe
the theory of an Earth centered universe
7
what is a solar prominence ?
gaseous loops that extend outward from the sun
sun's atmosphere which looks like a crown
an explosion the sun caused by nuclear fusion
cool spots on the sun which appear dark
8
what is a cytoplasm?
jelly like substance that fills the cell;
control center of the cell
protects the cell membrane, gives plant a structure
collects and store water and waste
9
which part of the microscope is used to vary amount of light that passes through.
power
diaphragm
body tube
illuminator (light source)