Random
The study of (page 12)
Environmental Problems (page 14)
Dynamic Earth (page 17)
Water Cycle (page 19)
100

This tells us what the graph is about (page 7)

Title

100

The study of life  (page 17)

Biology

100

When a large portion of a resource has been used up

Resource depletion

100
Life, plants, animals, fungi, bacteria

Biosphere

100

Heated liquid water rises into the atmosphere as water vapor

Evaporation

200

A skeleton or globe are examples of (page 8)

Physical Models

200

The study of matter and energy

Physics

200

Broken down by natural processes

Biodegradable

200

78% Nitrogen, 21% Oxygen, 1% Other

Atmosphere

200

Water evaporates from plants into the atmosphere

Transpiration

300

Weather forecasting and pandemic predictions use (page 8)

Mathematical Models

300

The study of human social behavior and culture

Sociology

300

When individuals use a shared resource in their own self-interest instead of the common good

Tragedy of the Commons

300

Water, rivers, lakes, oceans, ponds

Hydrosphere

300

Water vapor condenses backinto liquid droplets

Condensation

400
The study of how humans interact with the environment

Environmental Science

400

The study of human population dynamics and statistics

Demography

400

Resources that are replaced relatively quickly

Renewable resources

400

Ground, rocks, soil, minerals, lava

Geosphere

400

Rain, snow, sleet, hail

Precipitation

500

The study of energy, motion, and forces

Physics

500

The study of microorganisms

Microbiology

500

Resources that form more slowly (fossil fuels)

Nonrenewable resources

500

Permafrost, glaciers

Cryosphere

500

Ice is converted directly to a gas without becoming a liquid

Sublimination

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