George stephenson made important contributions to the revolution in transportation. Which statements are true about him? choose all answers that are correct.

All of these sentences include commonly confused homophones. which sentence is correct? you put too much sugar on your breakfast serial. my father grows vegetables and flours in his garden. will someone me untie the knot in my shoelace? when did the captain set sale on his trip to north america?

Summarize the work of famous environmental scientists of the past.

"what factors influence the absorption of sunlight at earth's surface? "