Introduction to Natural Resources. 3.0 Understand information related to environmental science, natural resources, and conservation studies.

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1 Introduction to Natural Resources 3.0 Understand information related to environmental science, natural resources, and conservation studies.

2 Terms 3.01 Remember terms of the environment and natural resources. 2 10/5/2018 Add a footer

3 General Terms Environment all the factors and surroundings that affect a living organism. Renewable resource a naturally occurring material or organism that supports life and can reproduce themselves or can be reproduced by human efforts. Exhaustible limited resources that exist in fixed quantities that cannot be replaced or reproduced. Ecosystem a partially self-contained environmental and living system, such as a prairie, wetland, woodland, mountain, or tundra. Food web a set of overlapping food chains that contain sequences of organisms, each of which provides a source of nutrients for the next organisms in the chain. Invasive species any species that is non-native or alien to an ecosystem and whose introduction causes or is likely to cause economic or environmental harm. Carrying capacity the maximum population level for which an ecosystem can provide ongoing food and shelter. Sustainability - the process of humans and nature existing in productive harmony, which permits fulfilling the social, economic and other requirements of present and future generations. 3 10/5/2018 Add a footer

4 Types of Natural Resources 4 10/5/2018 Add a footer

5 Types of Natural Resources What Natural Resource do you see? Soil Layer of natural materials on the earth s surface Contains both organic and inorganic materials Capable of supporting life. 5 10/5/2018 Add a footer

6 Types of Natural Resources What Natural Resource do you see? Water Colorless & transparent Naturally occurring compound Made of hydrogen and oxygen (H2o) 6 10/5/2018 Add a footer

7 Types of Natural Resources What Natural Resource do you see? Fish & Wildlife All non-domesticated animals Game and non-game *Domestication: the act of taming or controlling wild plant and animal species and producing them for human benefit. 7 10/5/2018 Add a footer

8 Types of Natural Resources What Natural Resource do you see? Forest Large area of land Covered with trees and undergrowth 8 10/5/2018 Add a footer

9 Types of Natural Resources What Natural Resource do you see? Minerals Inorganic compounds Occur naturally in the earth Have a distinctive structure. 9 10/5/2018 Add a footer

10 Types of Natural Resources What Natural Resource do you see? Fossil Fuels any energy-producing material created by the decomposition of dead plants and animals 10 10/5/2018 Add a footer

11 Human Impact on Natural Resources 3.02 Understand human population growth, demands, and roles in the environment and natural resources /5/2018 Add a footer

12 Human Population Growth Population: The number of given species in a specific area at a particular point in time. World population increase 2017: 7.6 billion people 2050 projection: 9 billion people Causes: Increased birth rate Lower mortality rate Longer lifespan Better healthcare Effects: Increase in demands for life s necessities (natural resources!!)

13 Population Growth Zero Population Growth: Result of birth rate begin equal to death rate Population control is difficult for some to accept due to attitudes and religion Birth rates decline as a society s education level increases /5/2018 Add a footer

14 Human Population Demands: Natural Resources Use of Renewable Natural Resources: Examples: Water, soil, air, wildlife, and forests Plants and animals used as sources of food, clothing, and shelter require these resources. Use of Nonrenewable Natural Resources: Examples: Fossil Fuels and Minerals 14 10/5/2018 Add a footer

15 Human Population Demands: Sustainability Resources must be used in a manner so they last a long time. Examples: Laws protect wetlands which are important in sustaining groundwater supplies and some species of wildlife Sustainable development considers future impact 15 10/5/2018 Add a footer

16 Human Population Demands: Environmental Damage Example: Waste Disposal Household waste & sewage is liquid waste containing water with solid materials Average American creates: 4.4 lbs. of trash & 100 gal of wastewater/ day 1,570 lbs. of trash & 36,000 gal of wastewater/ person/ yr Improperly disposed waste causes problems such as water pollution 16 10/5/2018 Add a footer

17 Human Population Demands: Environment Human impact on the atmosphere Action of people create air pollution 17 10/5/2018 Add a footer

18 Human Population Demands: Environment Example: The Greenhouse Effect: Excess carbon dioxide (CO2) from burning fossil fuels traps radiation near the Earth causing the warming of the Earth s surface /5/2018 Add a footer

19 Human Population Demands: Environment Another example: Damage to Ozone Layer: Ozone Layer is made up of O3 and prevents harmful radiation from reaching earth. This layer is developing holes due to CFC s used in aerosols and air conditioners 19 10/5/2018 Add a footer

20 Overpopulation Overpopulation leads to depletion of resources, hunger, and conflict. Resource depletion: the act of using resources faster than they can be restored or preserved. Desertification: once productive land forms into desert. This happens to about 15 million acres per year worldwide. Endangerment is any activity that threatens a species with extinction. Hunger: acute shortage of food. Malnourishment: lack of the proper nutrients. Undernourishment: lack of calories for energy /5/2018 Add a footer

21 Humans must derive everything needed for survival from an ecosystem. Our very survival depends upon our use of natural resources. Thus, humans play a major role in maintaining the quality of ecosystems and our environment /5/2018 Add a footer

22 Role of Humans Conservation: Wise use of a natural resource Prevents unnecessary damage or loss Conservationist: believes natural resources should be used in ways that assure their continuing availability on a long-term basis Preservation Natural resource preservation is the nonuse of a natural resource. Preservationist: believes in protection of resources Ex: Not harvesting trees for human use, but only be used for their beauty and environmental benefits /5/2018 Add a footer