Our solar system formed ________.
A. as the Sun's gravity trapped planets from other solar systems as it passed by them
B. during the Big Bang as matter started to form as the temperature of the universe cooled
C. when the Milky Way's black hole expelled Hawking radiation to our current location
D. just after the Big Bang when two short-lived solar systems collided
E. through collisions of matter within a rotating cloud of gas, ice, dust, and other solid debris
Answer: E
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While the world's mountain glaciers are melting at higher than historic rates, the Greenland ice sheet has yet to show any evidence of melting.
Answer the following statement true (T) or false (F)
Which country, noted for a great revolution, is touted for being the country in which nationalism began?
A. Germany B. Italy C. France D. Poland
Which of the following is NOT a setting in which regional mountain belts form?
A. upwelling of the mantle B. the collision of India with Asia C. passive margin D. subduction zone E. continental collision
Which of the following is a consequence of clearing forests for agriculture purposes?
A) CO2 levels in the atmosphere drop to dangerously low levels. B) Water runoff decreases because crops will take up more of the moisture. C) Soil erosion increases because the tree roots and other vegetation that stabilize the soil have been removed. D) Biodiversity increases because of habitat diversification. E) The soil becomes richer and retains moisture better because there are few trees to take up the water and soil nutrients.