they come from clouds through precipitation but some people think that water came on earth when the meteors hit earth at the beginning of time and released water
The units for density are incorrect. If the density of a block of wood is 0.5 g/cm3 then the volume of a 27 g block would be 27/0.5 cm3 = 54 cm3
Usually carbon-based substances derived from living things. Examples include everything we grow and eat, wood, dung and the humus content of soil. Organic matter can be added to soil to make it more fertile, eg dung or compost.
== Industries Plants Are Used In== Many. Cosmetics, farming, cooking, therapy, businesses such as flower shops, grocery stores, garden stores, medicines, and drugs like tobacco and marijuana.
Melting IceWater...It has the highest substance heat capacity i.e. water requires the largest loss of heat per mole to change phase (to freeze) and , (vice versa) ice requires the greatest amount of heat to change phase (to melt). all other things being constant, for example non-substances radiation and conduction heating.
Calcium chloride is the fastest thing I've seen melt ice. They sell it as Dowflake.
Dowflake is nice because it's noncorrosive to metal, unlike salt. It's also really expensive.
A very well-disolving salt - try a nitrate. Nitrate is the definition of dissolvable.
The Question was Multiple Choice
If there was anything that would melt ice fast, it would be molten lava. In fact, it melts and vaporizes almost simultaneously. One of the best ways to melt ice at room temperature is to set it on a large block of aluminum, which loses heat rapidly to the air.