Guillermo was finding it difficult to walk up the steps to his family’s apartment. His doctor thinks that his cells might not be getting enough oxygen or glucose. Why does having low levels of glucose or oxygen in his cells make it difficult for Guillermo to walk up steps? Which body systems should the doctor test in order to find out whether Guillermo’s cells are getting enough oxygen and glucose and why? *

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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.

i don't know. if i were you, i would search it up online : d

the answer to your question is tooth decay.