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Biology Block D

Page history last edited by Darrell Sharp 12 years, 4 months ago

 

 

Questions

 

  1. What are renewable resources?
  2. What are some examples of renewable resources?
  3. Where does water pollution come from
  4. How can the amount of nutrients in the water increase?
  5. Are pesticide and DDT harmful?
  6. What happens when the amount of nutrients is increased?
  7. What is erosion?
  8. What can soil erosion destroy?
  9. What can people do to help conserve fertile oil?
  10. What do research and technology help the environment?
  11. What does Mario Molina convince the world to do?
  12. How helpful is it to plan for the future?

 

Answers 

  1. Natural resources that can be replaced at the same rate at which they are consumed.
  2. Fresh water, solar energy, and fish.
  3. When fertilizers from farms, lawns, and gold courses can run off into a body of water.
  4. Fertilizers and Pesticides used in agriculture, livestock farms, industrial waste, oil runoff from roads, septic tanks, and unlined landfills.
  5. Yes, they harm many species, such as bald eagle.
  6. It leads to an excessive growth of algae called ‘bloom’. Then algal blooms deplete the dissolved oxygen so fish and other organisms suffocate in the oxygen-depleted water.
  7. A process in which the materials of Earth’s surface are worn away and transported from one place to another by wind, gravity, or water
  8. Soil erosion destroys fertile soil that we need in order to produce food.
  9. Terracing (changes a steep field into a series of flat steps that stop gravity from eroding the soil); Planting a cover crop (restores nutrients to the soil); Crop rotation (planting a different crop every year, slows down the depletion of nutrients in the soil); contour plowing (rows are plowed in curves along hills instead of in straight lines, then they act as a series of dams, which prevent water from eroding the soil.)
  10. They provide cleaner energy sources, better ways to deal with waste, and improved methods for cleaning up pollution.
  11. Limit the use of CFCs, which is an organic compound that contains carbon, chlorine, and fluorine, produced as a explosive copy of methane and ethane.
  12. Help us to avoid damaging environment and solve environment problems.

 

 

 

 

 

Renewable Resources

 

Agriculture

 

Industry

 

Livestock

 

 

Questions:

  1. What are nonrenewable resources?
  2. What are some examples of nonrenewable resources that are used today?
  3. Why are fossil fuel considered nonrenewable resources?
  4. What is deforestation?
  5. What is the damage of deforestation?
  6. What is biodiversity?
  7. Why is biodiversity important for sustainability of population?
  8. How some invasive species affect ecosystem and human?
  9. How can ecosystem disruption affect ecosystem?
  10. What is extinction?
  11. Why is it bad for the environment?
  12. How can advocacy and education help solve environmental problems?
  13. What is ecotourism?
  14. Why is ecotourism important for conservation?

 

Answer:

  1. Nonrenewable resources are resources that takes millions of years to form
  2. Fossil fuels: coal, oil, natural gas
  3. Because they are form from dead organism that were buried by sediment millions of years ago
  4. Deforestation is the process of clearing forest
  5. It destroys the habitat, which will lead to extinction of some species
  6. Biodiversity is the variety of organisms in a given area, or variety of species in ecosystem.
  7. Because every species plays an important role in the cycling of energy and nutrient in an ecosystem.
  8. They disrupt the ecosystem and human’s life
  9. It can result in loss of biodiversity, food supplies and balance of ecosystem
  10. Extinction is the death of every member of a species
  11. It decrease the biodiversity in an ecosystem
  12. It make people aware about environmental issues to  prevent further damage to ecosystem
  13. Ecotourism is a form of tourism that supports the conservation and sustainable development of ecologically unique areas
  14. It is one of the effective way to educate tourists about environmental issues

 

Pictures:

  1. How does cutting down forest and burning forest may affect species in it?
  2. Looking at the pictures below, do you think that nonrenewable resource are useful for environment?

 

 

 

 

 

 

 

Non-renewable Resources

1. What are non-renewable resources? Give examples?

Non-renewable resources are resources that require a long time to form, but are used in a faster rate.

Examples: fossil fuel energy, coal, minerals…take a long time to form but are used very fast by humans.

 

2. What are fossil fuels? Give an example and explain why it’s a type of fossil fuel?

Fossil fuels are a type of non-renewable resources that form from the remains of organisms that lived from a long time ago.

Example: Sediments built up over the remains of dead organisms, heat and pressure increased, creating chemical change that changed the remains into oil.

 

3. What are the differences between renewable and non-renewable resources?

Renewable resources:

Take long time to form, used in a very fast rate, can’t be renewed

Non-renewable resources:

Can never be used up, can be replaced at the same rate at which they’re consumed

 

Advocacy and Education

1. What is advocacy and how can it help solve environmental problems?

Conservation groups make efforts to educate people, protect land, and create laws that protect the environment. Media is used to raise awareness of environmental issues

 

2. How can education help solve environmental problems?

Educating the public about the environment helps gain public support for solving environmental issues. Ecotourism is one way that help people to experience the world they’re living in and motivate them to care for it by learning about the particular environmental problems of an area.

 

3. What is ecotourism?

A type of tourism that supports the conservation and sustainable development of an area, allowing tourists to learn about its environmental issues and to help solve the problem during their tour.

 

Habitat Loss

1. How many trees had been cut down over the last 50 years?

Half of the world’s tropical rain forests have been cut down or burned.

 

2. What is deforestation?

The process of clearing forests.

 

3. What is an example of habitat loss?

Humans are cutting down trees in Vietnam and they destroy the habitat of many species like elephants, tigers and other wild animals. Due to the fact that trees become less and less everyday will lead to extinction.

 

Biodiversity Loss

1. How does ecosystem disruption relate to the number of species on the Earth?

Ecosystem disruption decreases the number of the Earth’s species.

 

2. What is biodiversity?

The variety or number of species in an area.

 

3. What happens if the number of species decreases?

When a species disappears, a stand in the food web disappears. The species that disappears may be the one that humans depend on.

 

 

Invasive Species

1. What is invasive species?

A kind of species that takes the resource of habitat of other species and the other species’ population decreases.

 

2. What leads to invasive species?

Humans have disrupted the ecosystems by intentionally and unintentionally introducing non-native species.

 

3. What is an example of invasive species?

Humans brought zebra mussel to the Great Lakes. It disrupted the Great Lake’s ecosystem, causing some species struggle to survive and some develop.

 

Extinction

1. What is extinction?

The elimination of a species from Earth.

 

2. How many types of extinction are there?

There are 2 types of extinction: background and mass extinction

Background extinction – extinction of species that happen regularly due to environmental factors

Mass extinction – extinction of thousands of species in a short period of time.

 

3. What’s the effect of extinction?

The ecosystem will change. The food web will change and one of them can be the resource that humans depend on.

 

 

 

Coal

 

 

 

Deforestation

 

 

Ecotourism

 

Invasive species - Zebra mussels

 

Questions  

1.     How do populations grow and shrink? 

2.     What is carrying capacity? 

3.     Around what time did the human population started to accelerate rapidly? 

4.     What do you call a growth, if there are always more births than deaths? 

5.     What are the effects of acid rain, and what cause it? 

6.     What does the ozone layer do? 

7.     What had damage the ozone layer in the past years due to human activities? 

8.     What are C02 and water vapor an example of? 

9.     What is the greenhouse effect necessary for? 

10.    What is one of the best ways that we can help solve environmental problems? 

11.    What is the process of reusing things instead of taking more resources from the environments? 

12.    What goods can be used several times before disposal? 

 

Answers 

1.     Populations grow or shrinks depend on births, deaths, immigration, and emigration. Immigration is the movement of individuals into a population. Emigration is the movement of individuals out of a population. 

2.     The largest population that an environment can support at any given time is called carrying capacity. 

3.     Around the time of Industrial Revolution. 

4.     Exponential growth. 

5.     Acid rain damages forests and kales, and it is cause by pollution. 

6.     It protects life on Earth from the sun’s damaging UV rays. 

7.     It has been damaged by chlorofluorocarbons (CFCs). CFCs are human made chemicals that used as coolants in refrigerators and air conditioners and as propellants in spray cans. 

8.      Greenhouse gases. 

9.     The greenhouse effect is necessary to keep Earth’s temperatures stable. 

10.       Reducing the amount of energy that we use and the amount of waste that we produce. 

11.       Recycling is the process of reusing things. 

12.       Plastic bags and utensils can be used several times, rather than only once before disposal. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Questions:

 

  1.  Human population:
    1. What does carrying capacity mean?
    2. How do abiotic factor and biotic factor affect population size?
  2.  Air:
    1. How does recycling help the environment and human?
    2. What is ozone layer affected by? Where does it come from?
  3.  Conservation:
    1. How does recycling help environment and human?
    2. What benefits do we gain when we reuse? Give one example?

 

 

Answers:

 

  1.  Human population:
    1. Is the largest population that an environment can support at any given time.
    2. Nonliving factor is known as abiotic factor. Such as climate and weather affect to the live of organism. Biotic factor is the factor that relate to the activities of living thing. Such as food, plenty of food and the population will increase the otherwise, they will just stay.
  2.  Air
    1. The greenhouse effect is necessary to maintain lives of all kinds of organisms on Earth, however, recently the increase in CO2 has a bad effect on how the temperature of the Earth is increasing. That the CO2 is too thick to allow heat energy to be released.
    2. The ozone layer had been damaged by the chlorofluorocarbons (CFCs). This gas comes from the chemical reaction from human in using refrigerator, air conditioner and spray cans.
  3.  Conservation:
    1. Recycling the existing products would cost less than making the new ones from raw materials, saving money and also prevents pollution, which again also protect human’s health.
    2. Reuse is a good way for us to save our money and environmental resources when one thing can be used over and over again. For example: a plastic bag can be used many times, we don’t have to spend money to buy another, reduce the plastic resource in the Earth.

 

 

 

Question: What is the different between exponential and logistic growth?

Answer:  Exponential growth occurs when numbers increase by a certain factor in each successive time period and logistic growth is the population growth that starts with a minimum number of the individuals and reaches a maximum number depending on the carrying capacity of the habit.

 

 

 

Question: How does greenhouse affect global warming?

Answer:  Greenhouse Gas consists of the Carbon dioxide, Nitrous oxide and Methane. Because of the CO2 producing on Earth, the Greenhouse Gas floor get thicker and thicker over time, since, more heat from the sun will radiate into the atmosphere and cause Global Warming

 

 

 

Human populations growths questions J

 

1. What is carrying capacity?

     - Carrying capacity is the largest populations that an environment can support at any     given time.

2. Explain how science and technology affect human populations growth?

  - The advantages of agriculture technology helps people to roduce more crops and food. More foods fedd more people so the human populations increase too. Madical advances halps people avoid from sickness and deaths so there’s more grow than deaths.

 

Ozone layver, Acid rain and greenhouse effect questions J

 

1. What is acid rain?

  - acid rain is precipitation that has an unusually high concentration of sulfuric or nitric acids, which is caused by pollutions.

2. What is global warming?

  - Global warming is the gradual increse in the average global temperature.

3. What is greenhouse effect?

  - Greenhouse effect is the warming of the surface and lower atmosphere of Earth  that happens when greenhouse gases are CO2 and water vapor.

4. What are the effects of air pollution?

  - Air pollution is cause by human activities.

5. What is the cause of air pollution?

  - the result og air pollution are acid rain, damges the ozone layer, and may afftect global temperature.

 

3 R’s

 

1. What are the three ways that you can reduce your use of resources?

  - Reduce, Reuse, Recycle

2. What is recycling?

  - The process of reusing thins instead of taking more resources from the environment.

 

 
   
   

 




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