Ice can be found anywhere from the Arctic to lake Tahoe in California/Nevada during winter. Once spring comes, the ice melts in the heat of the sun and travels south in a river or stream. By the time it is summer the water has traveled very far and it is hot enough for the water to evaporate into a gas that accumulates into clouds. The clouds are pushed by wind patterns north during fall and the gas slowly condenses into water droplets. By the time the cloud is heavy enough to rain down it is winter again and the water freezes back into a solid on the way down to the ground in the form of snow or hail. Then the cycle starts again.
-A
sunlight
Methane
enamel
In the natural state, and under standard conditions, it will be solid and liquid.
False. Potassium, elemental symbol K, is a naturally occurring metal. Synthetic elements in contrast include radioactive elements which may only exist for small amount of time in laboratory conditions.
genes
50
If a substance is said to have a natural abundance of isotopes, it means the substance is found in large numbers in nature with an electric charge. Substances found in nature are usually electrically neutral.
It is a substance(chemical or natural) which changes colour in the presence of an acid or base.
An element is a substance in its pure and natural form.
Harmful bacteria, yeasts, mold, and natural chemical changes within the cells of the food
a natural substance is something that is found again and again in many different forms eg. salt (also a reoccurring substance)
sunlight
They can produce enzymes under some conditions but not all. this is natural selection because producing them themselves makes it easier for them to stay alive.
Changes that happen without no help from humans they happen completely natural.
Changes that happen without no help from humans they happen completely natural.
It is not possible to explain a false proposition.