Rocks moved farther by erosion are usually ____________. *
smaller
brighter
larger
darker
At the atomic level, heat causes atoms and molecules to ________. *
collide less
freeze
stop
vibrate
The liquid inside of thermometers is called ________. *
mockery
mercury
muckery
monkey
What is one kind of renewable energy? *
Fossil fuels
Coal
Nuclear
Wind
Heat gain usually causes materials to ________. *
contract
break apart
expand
stay the same
What is the correct order of the following steps in the rock cycle? *
Hình ảnh không có chú thích
iii, ii, i
i, iii, ii
iii, i, ii
i, ii, iii
Which of the following is biodegradable?
Plastic
Glass
Paper
Aluminum cans
Forests are cleared on a large scale during _______, but can be planted again is a process called _______. *
reforestation ; deforestation
deforestation ; reforestation
biodegradable ; soil erosion
soil erosion ; biodegradable
Which method of heat transfer is responsible for causing clouds, precipitation, and thunderstorms? *
Radiation
Conduction
Convection
None of the above
Which of the following is a cause of weathering? *
Wind
Rain
Acid
All of the above
Materials that do NOT radiate and absorb heat very well are often ________. *
silvery and shiny
dark and dull
small
big
Lustre is a measure of how _______ something is. *
massive
round
hard
shiny
_______ is formed when molten rock cools and hardens into a solid. *
Metamorphic rock
Space rock
Igneous rock
Sedimentary rock
Air pollution can cause damage to our ________. *
lungs
environment
brains
All of the above
Greenhouse gases cause the Earth to _______. *
cool down
heat up
become wetter
become drier