What is the volume of a sphere with a surface area of 64cm?? O 167 cm
O 213 cm
0 487 cm
O 85 cm

Say whether each of the following statements relates to the influence on weathering by rock composition, rock properties, or climate. 1.exposed rock in the mountains of alaska 2.a lack of fractures in an outcrop3.quartz is rarely affected by dissolution, hydrolysis, or oxidation4.high porosity (a large amount of space between grains in a rock)5.rocks on the coast of a tropical island6.minerals that dissolve in the presence of waterthe good earth/chapter 9: weathering and soils weathering ratesthe good earth/chapter 9: weathering and soilscompositional control1.weathering is faster in rocks composed of weaker material or material that is easily converted to weaker material (such as feldspars)2.weathering is faster in rocks made up of minerals that dissolve in water (salt, gypsum)3.weathering is slower in rocks made of resistant materials (quartz)rock property control1.weathering is faster in rocks that allow air and water in (porous, fractured)2.fractures are natural weathering surfaces3.igneous and metamorphic rocks generally have low porosity –do you think they are particularly susceptible to weathering

1. what other famous event was going in on africa in 1994? 2. why does the country of rwanda use francs as their currency? 3. when paul s neighbor (victor) gets attacked, what does paul do? why? 4. what was the significance of the phrase "cut the tall trees"? 5. when violence breaks out, who comes to ? who gets ? who does t get ? 6. when paul realizes no one is coming to the rwandan refugees, he tells them there is only one way for them to get . what is it? 7. what deal does george try to make with paul? 8. why didn t any foreign countries try to stop the hutus? 9. what event sparked the beginning of the genocide? who does that event get blamed on? 10. who was supplying the hutu army? 11. what did 19th century imperialism have to do with this 20 century genocide? 12. where did the classifications of hutu and tutsi come from in rwanda? 13. why are some people being and others are not? 14. if you were in paul s position, do you think your reaction would have been the same as his? explain. 15. how did the international community fail the people of rwanda? why were they so reluctant to act? what is our responsibility as global citizens in these kinds of events? how are events in rwanda and darfur conceded to 19th century imperialism?

17. the soil erosion pictured here is the result of what? a. harvesting renewable resources at a rate greater than the sustainable yield b. a mudslide caused by excessive rains c. harvesting renewable resources at a rate lower than the sustainable yield d. the transition between geologic eras and eons