Geology • Geologist- a scientist that studies the earth and the materials on it • Rocks • Igneous • Sedimentary • Metamorphic • Minerals • Tectonic Cycle • Natural Resources
LIMITED RESOURCES A natural resource that will eventually run out or will limit the abundance of a population
NONRENEWABLE RESOURCES A natural resource that cannot be re-made or re-grown at a scale comparable to its consumption.
NUCLEAR ENERGY Nuclear fission uses uranium to create energy. Once the uranium is used, it is gone!
Fossil Fuels Coal, petroleum, and natural gas are considered nonrenewable because they can not be replenished in a short period of time.
Organic-derived from living things • Synthetic-man-made substance that imitates a natural resource • Examples: Charcoal, Bricks
RENEWABLE RESOURCES Natural resources that can be replenished in a short period of time. ● Solar ● Geothermal ● Wind ● Biomass ● Water
SOLAR Energy from the sun. Why is energy from the sun renewable?
GEOTHERMAL Energy from Earth’s heat. Why is energy from the heat of the Earth renewable?
WIND Energy from the wind. Why is energy from the wind renewable?
BIOMASS Energy from burning organic or living matter. Why is energy from biomass renewable?
WATER or HYDROELECTRIC Energy from the flow of water. Why is energy of flowing water renewable?
How does the way in which some resources are extracted and used affect the Earth’s environment? • Can lead to pollution of land, water, and air • May contribute to global warming • Destruction of landscape may occur
Destruction of the environment • Oil leaks • Ozone hole • Deforestation
Advantages vs. Disadvantages What are advantages and disadvantages of using the following: • Fossil fuels • Hydro • Wind • Geothermal • Solar