Water Cycle
What is the name of the process in which water is heated by the sun and transforms into water vapour?
Evaporation
Is carbon part of all living things or all non-living things?
Living things
Name three oxygen reservoirs
Atmosphere, rocks and oceans, biosphere
What form does most nitrogen take in the atmosphere?
Which of the Earth's spheres contain all gases surrounding the Earth?
Atmosphere
What is the name of the process in which water vapour cools into liquid droplets and forms clouds?
Condensation
What is the name of the process in which humans and animals take in oxygen and release carbon dioxide?
Breathing / cellular respiration
Name three gases in the atmosphere containing oxygen
oxygen gas, ozone, carbon dioxide, water vapour
Why is it important that nitrogen be converted to nitrates?
Plants can't use other forms of nitrogen
Which of Earth's spheres contains all its water?
Hydrosphere
Precipitation
Which branch of the carbon cycle takes millions of years? Geological or biological?
Geological
What type of organisms take in oxygen and excrete carbon dioxide?
Animals
What microbes convert nitrogen in the atmosphere into ammonia in the soil?
Nitrogen-fixing microbes
Which of Earth's spheres contain all living things?
Biosphere
What is the name of the process by which water penetrates the soil, collecting in underground aquifers?
Infiltration
A feature that absorbs and stores carbon
What is the name of the process in which plants take in carbon dioxide and excrete oxygen?
Photosynthesis
What type of bacteria convert nitrogen in ammonia into nitrites and nitrates?
Nitrifying bacteria
Which of Earth's spheres includes the Earth's crust?
Lithosphere
What is the name of the process where water runs along the ground, collecting in rivers, lakes and oceans?
Runoff
Name a carbon sink
Oceans, rocks, forests, atmosphere
Oxygen exists in the hydrosphere in what form besides water?
Dissolved oxygen and dissolved carbon dioxide
What type of bacteria convert nitrogen in nitrites and nitrates back into nitrogen gas in the atmosphere?
Denitrifying bacteria
Water evaporating, clouds forming, precipitation