An enzyme known to catalyze the cleavage of di-saccharides is added to a pure sample of an unknown carbohydrate. infrared spectroscopy on the resulting solution reveals the presence of two separate peaks between 1760 cm⁻¹ and 1665 cm⁻¹.

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Sucrose

Explanation:

These two regions and region in between 1760 cm-1 and 1665 cm-1 is carbonyl strech indicative. therefore, two different peaks indicates two type of carbonyl functional group.

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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.

the median of the data is 4.5.