Barrons AP Environmental Science

Aquifers

Types   of  Ice

Oceans

Agricultural,   Industrial, and Municipal   Use

Global  Problems

Practice    Questions   and Answers

UNIT    II: THE LIVING  WORLD   (10%–15%)

4 Ecosystems

Ecology

Law of  Tolerance

Energy  Flow

Biomes

Biodiversity

Practice    Questions   and Answers

5 Natural Biogeochemical Cycles

Carbon  Cycle

Nitrogen    Cycle

Phosphorus  Cycle

Sulfur  Cycle

Water   Cycle

Role    of  H 2 O,  C,  N,  P,  and S   in  the Human   Body

Practice    Questions   and Answers

UNIT    III:    POPULATION  (10%–15%)

6 Populations

Population  Ecology

Survivorship

Human   Population  Dynamics

Demographic Transition

Age-Structure   Diagrams

Population  Size

Impacts of  Population  Growth