Answer:
Newcomers' failures at homesteading were common due to the harsh climate, their lack of experience, or the inability to obtain prime farming lands. In some areas “taking the cure” – declaring bankruptcy or simply abandoning the land claim – became common.
Explanation:
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Carbon Dioxide is the gas that contributes most to the greenhouse effect.
Explanation:
BB=Brown as both are big B's
Bb=Brown as there is a big B
bb=Blue as both are little b's
The presence of a membrane bound nucleus describes the evolution of eukaryotes from prokaryotic organisms. The endosymbiotic theory describes the same, the large cells engulfed the smaller ones, and the engulfed cells were not digested but started living in mutual cooperation with the engulfing cell. Mitochondria and chloroplast are thought to be the engulfed cell
Answer:
Yes, Mass Extinctions May Have Been Caused By Meteors, as the probability of mass extinction occurring after an asteroid that could hit a random location on the Earth's surface was approximately 13% when the Chicxulub-scale asteroid hit the Earth.
Soot could be the main cause of mass extinction after an asteroid impact.
