Natural selection. Which ultimately leads to evolution.
Or God. Depending on your beliefs.
An element occur in nature as a pure element or as a compound.
Bromine is a liquid but doesn't occur in nature as a free element.
its a phase change
Bromine is a liquid but doesn't occur in nature as a free element.
Yes, the halogens did occur in nature as free elements.
Gravity, electromagnetism, friction, and wind are forces that occur in nature. Earthquakes, volcanic eruptions, lightning, and tornadoes are natural phenomena that occur in nature.
About 80% of the first 117 elements occur in the nature in a stable manner.
No, gay people are not unnatural. Consider the following points:If something occurs in nature, then it's natural.Homosexuality occurs in nature.Just because something doesn't occur in nature, does not mean we shouldn't do it. Writing doesn't occur in nature. Football doesn't occur in nature. Hearing aids don't occur in nature.
no they do not
Only Mercury occurs in nature as a liquid in its elemental state. Bromine is also a liquid element, but does not occur in its elemental form in nature.
Food chains do not occur often in nature because, many organisms do specialize in their diets.
Plutonium is an element that does not occur in nature in significant amounts but can be produced artificially in nuclear reactors.