What two requirements must food meet in order to be considered a food molecule?

The mini-refrigerator fire was most likely caused by what type of wiring?

The largest observatory complex in the world is on mauna kea, the tallest mountain on earth. what are some factors astronomers consider when selecting an observatory site? don’t forget practical ones. should astronomers, for example, consider building an observatory on denali (mount mckinley) or mount everest?

If a nissan titan has a mass of 2,300 kilograms how many grams is that