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1. Which event would cause an ecosystem to change quickly? a) Climate change b) An earthquake c) A lake drying up
b) an earthquake.
Which event can cause an ecosystem to change very slowly: a) Earthquake b) Tornado c) Seasonal change.
c) seasonal change
Beavers are famous for building dams, which type of change is this: a) Fast change b) Slow change c) Change due to organism.
c) Change due to organism.
4. Any substance that damages the environment is called: a) Ecosystem b) Slow change c) Pollution
c) Pollution
The imaginary line that the Earth spins around is known as: a) Revolution b) Axis c) Planet
b) Axis
The Earth spins around its axis from: a) East to west b) North to south c) West to East
c) West to East
Earth completes one full cycle around its axis in a) 24 hours b) 48 hours c) 365 days
a) 24 hours
The path an object takes as it revolves around a star , moon or a planet is known as : a) Orbit b) Axis c) Planet
a) Orbit
