chilling or refrigeration
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The act of purifying water (or just separating different mixtures) through evaporation is "distillation".
Distillation
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When water is released from leaves and evaporates it is called transpiration.
Trees that lose their leaves once a year are called "deciduous." In cooler climates this is usually in Autumn. In some climates plants lose their leaves in the Dry season these are also called deciduous. Losing all the leaves is the important part. Trees that stay green all year round are called "evergreen"
A tree that loses its leaves is called deciduous.
This is called a trace fossil. or a mold.
Transpiration - see herehttp://en.wikipedia.org/wiki/Transpiration
Ammonium nitrate leaves no residue when heated:NH4NO3 Δ→ N2O + 2H2O
Dust particles
Where a stream leaves a mountain range is called a Alluvial Fan. An Alluvial Fan is the sediment the streams leave behind as it leaves the range.
there are many techniques to it. The best can be heating the solution till the time the solution gets evaporated and it leaves behind the salt.
What is it called when softer rock weathers away and leaves harder rocks behind
These minerals are called evaporites.
It leaves behind salt crystals (which is the natural state of NaCl).
What is it called when softer rock weathers away and leaves harder rocks behind
It is natural. They are called incisions and occur naturally. There is no particular reason behind it.
They Leave Behind Bones or leaves from whatever they were.
weathering is wind erosin what it does is when wind blows it leaves behind pebbles and boulders.
Voids left behind by once present fossils are called 'trace fossils'.