Environmental Science

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While noise pollution cannot be completely eliminated, it can be controlled through the use of buffers according to Forbes Magazine. Noise pollution can cause a variety of health issues, including high blood pressure, impaired cognitive thinking and chronic stress, so it’s important to address the issue.

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  • What is the belt of calm air near the equator?

    Q: What is the belt of calm air near the equator?

    A: The intertropical convergence zone is a belt of low pressure that circles the Earth with calm air, especially over the oceans. Scientists call the ITCZ various names, including the doldrums or the equatorial calms. When sail-powered ships reached these dreaded zones, they faced the potential of stalling for days or weeks without enough wind to proceed, according to Reference.com.
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  • What are the effects of desertification?

    Q: What are the effects of desertification?

    A: Desertification causes a high-risk of crop failure, low economic returns on crops, a build-up of salt in the soil and the accidental burning of semiarid vegetation. This process turns usable desert land into unusable land due to poor land management.
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  • How do homologous structures support evolution?

    Q: How do homologous structures support evolution?

    A: Homologous structures, such as the fins of whales and the hands of monkeys, demonstrate that while a species may use structures for different purposes, the species shared a common ancestor. By definition, homologous structures refer to those that were derived from ancestrally similar structures. The natural world is full of examples of homologous structures, which the theory of natural selection predicts should be the case.
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  • What are the pros of nuclear energy?

    Q: What are the pros of nuclear energy?

    A: Nuclear energy generates electricity more efficiently than other energy sources such as coal, according to About.com. Nuclear power plants are not heavy polluters in the same manner as coal or oil.
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  • What are the effects of ozone depletion?

    Q: What are the effects of ozone depletion?

    A: The main consequence of a depleted ozone layer is a reduction in the protection it affords against harmful ultraviolet radiation (UVB) emanating from the sun. According to the Environmental Protection Agency (EPA), increased UVB radiation damages human health, plant life, marine ecosystems and biogeochemical cycles.
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  • Why do we need rain?

    Q: Why do we need rain?

    A: Rain is needed as a source of fresh water, which is essential for the survival of humans, plants and animals. Rain fills aquifers, lakes and rivers, maintaining the lives of living organisms. Rain maintains natural features, such as forests.
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  • Why is oceanography important?

    Q: Why is oceanography important?

    A: Oceanography is a very important discipline for understanding the oceans, which are essential for all life on Earth and cover the majority of the Earth's surface. Oceanography is extremely multidisciplinary, covering the physics, chemistry, geology and biology of the world's oceans. No understanding of Earth's climate or the chemical cycles essential to life is complete without the insights of oceanography.
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  • What is an example of a terrestrial food chain?

    Q: What is an example of a terrestrial food chain?

    A: An example of a terrestrial food chain is grass-grasshopper-snake-hawk. A food chain is a series of interconnected feeding relationships among different species in an ecosystem.
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  • Are humans destroying the planet?

    Q: Are humans destroying the planet?

    A: Although human beings may not be capable of fully destroying the earth, their daily activities are causing enough harm to the planet that it may become uninhabitable for humans for a long while. Human beings have also developed destructive technology such as nuclear weapons that, if used in their full capacity, may also make the earth uninhabitable for a long time for many creatures, including humans.
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  • How many plastic bottles are thrown away each year?

    Q: How many plastic bottles are thrown away each year?

    A: According to a 2009 report from the U.S. Government Accountability Office, 632,655 to 999,001 tons of plastic water bottles were discarded in 2006. This analysis calculated the total as 76.5 percent of the plastic bottles produced in the United States.
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  • What is the hottest country on Earth?

    Q: What is the hottest country on Earth?

    A: The hottest country in the world is Libya, where temperatures higher than 136 degrees Fahrenheit are recorded. The country's terrain is almost completely desert, with little rainfall and very hot temperatures year round.
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  • What are the types and functions of primary rain forest consumers?

    Q: What are the types and functions of primary rain forest consumers?

    A: In the rain forest, primary consumers are generally the smallest on the food chain and include insects and small mammals, such as chipmunks, mice and squirrels. Primary consumers are found in terrestrial areas and in aquatic habitats, and they are generally located on the forest floor or in low levels of the canopy. In rivers, streams and other bodies of water running through the rain forest, primary consumers include fish such as salmon that feed on water organisms and insects.
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  • What does an ecologist study?

    Q: What does an ecologist study?

    A: Ecologists study environmental systems. These systems are biotic factors, which are the living parts of an ecosystem, and abiotic factors, which are the nonliving parts. The items that consumers eat depends upon whether they are herbivores, carnivores or omnivores.
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  • How does reforestation help the environment?

    Q: How does reforestation help the environment?

    A: Global reforestation in an important issue of growing concern. Forests are a natural carbon sink and absorb much of the emissions from burning fossil fuels.
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  • What caused the hole in the ozone layer?

    Q: What caused the hole in the ozone layer?

    A: The gaping hole in the ozone layer of the atmosphere over the Antarctic was caused primarily by high concentrations of ozone-depleting chemicals called CFCs. The vast hole in the ozone was discovered by scientists in the 1980s, who upon discovering the dramatic loss in ozone cover, set to work determining a primary cause. They found excessive concentrations of chlorofluorocarbons (CFCs) in the area of concern; CFCs were frequently used as additives in spray cans and refrigerants, but are now banned in most areas of the world.
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  • What causes the greenhouse effect?

    Q: What causes the greenhouse effect?

    A: Heat energy comes to the Earth as sunlight and leaves in the form of infrared radiation, but greenhouses gases trap some of the radiation before it can escape the atmosphere again, leading to the "greenhouse effect." This gives the atmosphere a great deal of its ambient warmth. However, as greenhouse gases have increased their presence in the environment, the temperature of the Earth has risen as a result.
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  • What is the desert ecosystem like?

    Q: What is the desert ecosystem like?

    A: There are two types of deserts: temperate, or cold, and subtropical, or hot, which gives deserts more than one type of ecosystem. There are similarities as both get less than 10 inches of rain a year, and the air is generally dry in both types of biomes. The lack of water in either type of desert makes them harsh for people or creatures living there.
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  • Why are landfills good?

    Q: Why are landfills good?

    A: One reason that landfills are good is because they allow the government to monitor waste disposal. Although the thought of a landfill of garbage and waste does not sound appealing, they're quite beneficial to society.
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  • What is the difference between male and female pine cones?

    Q: What is the difference between male and female pine cones?

    A: The pine cones typically thought of as pine cones are actually the bigger female pine cones; male pine cones are not as woody and are much smaller in size. Female pine cones hold the seeds whereas male pine cones contain the pollen. Most conifers, or cone-bearing trees, have female and male pine cones on the same tree.
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  • How does acid rain affect buildings?

    Q: How does acid rain affect buildings?

    A: The Virtual Chembook of Elmhurst College explains that acid rain considerably increases the rate of corrosion on marble, sandstone and limestone buildings. Sulfur dioxide and water forms sulfurous acid, and sulfur trioxide and water creates sulfuric acid, which reacts with limestone in a neutralization reaction. Limestone dissolves and crumbles as calcium sulfate is soluble in water.
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  • What causes deforestation?

    Q: What causes deforestation?

    A: According to the Earth Observatory, the single most direct cause of deforestation is conversion of forestry to cropland and pasture. Other causes include urbanization and infrastructure expansion.
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