Environmental Science

A:

There are two recognized types of smog, which are sulfurous smog and photochemical smog. Sulfurous smog is a high concentration of sulfur oxides in the air. Photochemical smog is nitrogen oxides and hydrocarbon vapors emitted by automobiles and other sources, which then undergo photochemical reactions in the lower atmosphere.

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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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  • What are the causes of environmental degradation in India?

    Q: What are the causes of environmental degradation in India?

    A: According to the Foundation for Sustainable Development, India's high population, coupled with its comparatively small geographic size, has resulted in major environmental degradation, including the loss of forests and the depletion of water and other natural resources. Air pollution, water pollution and an abundance of solid waste are major problems on the Indian subcontinent.
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  • What is carbon dioxide?

    Q: What is carbon dioxide?

    A: Carbon dioxide is a colorless, non-organic compound that is a gas at room temperature and comprises about 0.03 percent of Earth's atmosphere. It is produced when materials that contain carbon are combusted, and it is one of the most prevalent greenhouse gases that trap heat within the Earth's atmosphere.
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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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  • 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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  • 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 causes acid rain?

    Q: What causes acid rain?

    A: Acid rain is caused by the mixing of moisture in the atmosphere with sulfur dioxide and nitrous oxides, forming sulfuric acid and nitric acid in the precipitation that falls to the earth. In the Northern Hemisphere, the most common source of these chemicals in the atmosphere is air pollution from industry, generation of electricity and automobiles.
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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 is the difference between an environment and an ecosystem?

    Q: What is the difference between an environment and an ecosystem?

    A: An environment generally refers to the surroundings of various living residents, while an ecosystem is a community consisting of both living and non-living things that work together. In general, an ecosystem is defined by its environment, and all organisms within the ecosystem must work in tandem to create a successful living space.
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  • Why are Okapi endangered?

    Q: Why are Okapi endangered?

    A: The okapi is endangered due to illegal hunting and the destruction of its habitat, explains Animal Diversity. It was also endangered by the civil war in the Congo, where it lives as a native to the Ituri Rainforest.
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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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  • What factors affect soil fertility?

    Q: What factors affect soil fertility?

    A: The presence of nutrients, minerals, organic matter, microorganisms, and the texture and structure of the soil affect soil fertility. Fertility refers to the ability of soil to provide plants with the nutrients they require to grow and fight disease.
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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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  • What is the definition of environmental ethics?

    Q: What is the definition of environmental ethics?

    A: Environmental ethics is a form of philosophy that considers the ways humans interact with their natural environment and with nonhuman animals. This includes a moral consideration of the human approach to natural resources.
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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 are pelagic zone animals?

    Q: What are pelagic zone animals?

    A: According to Encyclopedia Britannica, the pelagic zone, or open ocean, includes animals classified as either zooplankton or nekton. Zooplankton are small organisms that drift in the ocean currents and make up an enormous portion of the ocean's food supply. Nekton are larger animals that swim independently of current.
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  • What are alternative fuels?

    Q: What are alternative fuels?

    A: The U.S. Environmental Protection Agency describes alternative fuels as those that are used in place of gasoline or diesel. Dozens of alternative fuels exist and new ideas are constantly explored, but the U.S. Department of Energy lists six types of alternative fuel that are already in production or in development as of 2014: biodiesel, electricity, ethanol, hydrogen, natural gas and propane.
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  • What are the ecological and environmental concerns of the tundra biome?

    Q: What are the ecological and environmental concerns of the tundra biome?

    A: According to the Seattle P-I, the environmental and ecological concerns of the tundra biome include climate change, air pollution, human development and ecological imbalances. Recently, humans have been increasingly impacting the tundra both directly and indirectly. In the past, the tundra has not been able to support much human life and therefore remained free of human disturbance.
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  • What are the main parts of an ecosystem?

    Q: What are the main parts of an ecosystem?

    A: The main parts of an ecosystem are soil, water, heat from the sun, sunlight, the atmosphere and living organisms. An ecosystem is a community of non-living and living things that work together.
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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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