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  2. Shade (shadow) - Wikipedia

    en.wikipedia.org/wiki/Shade_(shadow)

    Full sun – more than five hours of direct sun per day. Part shade – two to five hours of direct sun, or all-day dappled sun (sunlight shining through open trees). Full shade – less than two hours of direct sun per day. Under a dense forest canopy, light intensity can be very low.

  3. Natural resource - Wikipedia

    en.wikipedia.org/wiki/Natural_resource

    Natural resource management is a discipline in the management of natural resources such as land, water, soil, plants, and animals—with a particular focus on how management affects quality of life for present and future generations. Hence, sustainable development is followed according to the judicious use of resources to supply present and ...

  4. Sunlight - Wikipedia

    en.wikipedia.org/wiki/Sunlight

    If the extraterrestrial solar radiation is 1,367 watts per square meter (the value when the Earth–Sun distance is 1 astronomical unit), then the direct sunlight at Earth's surface when the Sun is at the zenith is about 1,050 W/m 2, but the total amount (direct and indirect from the atmosphere) hitting the ground is around 1,120 W/m 2. [6]

  5. Nature conservation - Wikipedia

    en.wikipedia.org/wiki/Nature_conservation

    Both terms involve a degree of protection, but how that protection is carried out is the key difference. Conservation is generally associated with the protection of natural resources, while preservation is associated with the protection of buildings, objects, and landscapes.

  6. Natural environment - Wikipedia

    en.wikipedia.org/wiki/Natural_environment

    Universal natural resources and physical phenomena that lack clear-cut boundaries, such as air, water and climate, as well as energy, radiation, electric charge and magnetism, not originating from civilized human actions. In contrast to the natural environment is the built environment.

  7. Environmental stewardship - Wikipedia

    en.wikipedia.org/wiki/Environmental_stewardship

    Environmental stewardship (or planetary stewardship) refers to the responsible use and protection of the natural environment through active participation in conservation efforts and sustainable practices by individuals, small groups, nonprofit organizations, federal agencies, and other collective networks.

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