When you observe a burning candle, you observe both light and thermal energy. Why does this example demonstrate the law of conservation of energy? A.
Matter is not created or destroyed when the candle burns.

B.
The amount of energy in the candle is equal to the amount of light energy produced.

C.
The chemical energy in the candle is transformed into light and thermal energy without creating or destroying energy.

D.
The law is only true when potential energy is transformed into kinetic energy.

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.

the oldest known insects are believed to live around 400 millions ago as suggested by the fossil records.   some plants having woody stems also evolved during this time.

after the evolution of insects the first four legged species or the tetrapods evolved in shallow freshwater habitats from the intermediate species approximately 397 million years ago. the tetrapods went on conquering the land giving rise to amphibians, reptiles, mammals and birds.

the major split in tetrapods first occurred 340 million years ago branching off from amphibians.

363 million years ago when the carboniferous period began the insects started roaming on land and taking flights, following which the four limbed tetrapods adapted in the terrestrial habitat.