Which is the best definition of a polymer?
a simple molecule with basic properties and functions
two molecules held together with an ionic bond
a combination of three or more monomer molecules in a chain

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explanation:

plate tectonics and volcanic euptions

over time, plate tectonic processes cause continents to move to different positions on the globe.

for example, britain was near to the equator 300 million years ago, and therefore was hotter than it is today. for further details look at our climate through time poster or online map.

the movement of the plates also causes volcanoes and mountains to form and these too can contribute to a change in climate.

mountain ranges formed by plate tectonics. large mountain chains can influence the circulation of air around the globe, and consequently influence the climate.   warm air might be deflected somewhere cooler by the mountains.

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answer: i cant find your answer. do u have another way i can answer it for you : )

explanation:

the electromagnetic energy from the sun arrives in the form of visible and invisible light.