Answer:
our planet
Explanation:
Forests. Forests are large areas covered with plants.
Grasslands. Grasslands are regions dominated by grasses.
Deserts. Deserts are areas that receive very little rainfall.
Mountains and Polar Regions. Earth’s polar regions (the Arctic in the north and the Antarctic in the south) and tall mountains are extremely cold.
Aquatic Habitats are seas, oceans, rivers, etc.
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In order to answer this question, you must have data for the electricity cost. For this example let's follow the electricity cost for USA. According to U.S Energy Information Administration, the an average home costs 12.3 cents per kW-h in January 2017. For consistency, convert year to hours. In a year (365 days), there are 8769 hours.
12.3 cents/kW-h * 0.5 kW * 8769 h = 53929.35 cents = $539.2935
None of the above! You can use the headlights even if the visibility is way under 1000feet. There are many countries especially in Europe where headlights/daylights must be always on with no regard to visibility conditions. In some cities you will be even given a fine for not having the lights on all the time. But rules vary from country to country...