Renewable energies (also capitalized: renewable energies) or regenerative energies are energy sources that are practically inexhaustible in the human time horizon for sustainable energy supply or that are renewed relatively quickly. This sets them apart from fossil energy sources that are finite or only regenerate over a period of millions of years. In addition to the efficient use of energy renewable energy sources are the most important pillar of a sustainable energy policy and the energy transition. These include bioenergy (biomass potential) geothermal energy hydropower ocean energy solar energy and wind energy and get their energy from the nuclear fusion of the sun which is by far the most important source of energy from the kinetic energy of the earth's rotation and planetary motion and from the heat of the earth .Agriculture (abbreviated: LWS) or agriculture is an economic area of ââ¬â¹Ã¢â¬â¹primary production. The aim of primary production is the targeted production of plant or animal products on an area cultivated for this purpose. In science and in specialist practice the term ââ¬Åagricultureââ¬Â is now a synonym for purchase historically however it was called the economy.
圖片編號:
207256259
拍攝者:
Snapshotfreddy
點數下載
授權類型 | 尺寸 | 像素 | 格式 | 點數 | |
---|---|---|---|---|---|
標準授權 | XS | 480 x 108 | JPG | 13 | |
標準授權 | S | 800 x 181 | JPG | 15 | |
標準授權 | M | 3646 x 822 | JPG | 18 | |
標準授權 | L | 4707 x 1062 | JPG | 20 | |
標準授權 | XL | 5954 x 1343 | JPG | 22 | |
標準授權 | MAX | 15484 x 3494 | JPG | 23 | |
標準授權 | TIFF | 21898 x 4941 | TIF | 39 | |
進階授權 | WEL | 15484 x 3494 | JPG | 88 | |
進階授權 | PEL | 15484 x 3494 | JPG | 88 | |
進階授權 | UEL | 15484 x 3494 | JPG | 88 |
XS
S
M
L
XL
MAX
TIFF
WEL
PEL
UEL
標準授權 | 480 x 108 px | JPG | 13 點 |
標準授權 | 800 x 181 px | JPG | 15 點 |
標準授權 | 3646 x 822 px | JPG | 18 點 |
標準授權 | 4707 x 1062 px | JPG | 20 點 |
標準授權 | 5954 x 1343 px | JPG | 22 點 |
標準授權 | 15484 x 3494 px | JPG | 23 點 |
標準授權 | 21898 x 4941 px | TIF | 39 點 |
進階授權 | 15484 x 3494 px | JPG | 88 點 |
進階授權 | 15484 x 3494 px | JPG | 88 點 |
進階授權 | 15484 x 3494 px | JPG | 88 點 |