7. Albert is standing at point A. He takes a sighting to the top of a cliff, (point C). The angle of elevation is 30°
degrees. Becky is standing at point B and takes a
sighting to the top of the same cliff, (point C). The
angle of elevation is 45° degrees. If the cliff is 100 feet
high, find the exact distance between Albert and Becky.

Click the item in the left column. use the plus sign to move it up or the minus sign to move it down until it matches the correct entry in the right column. lock your answer in place by clicking the square beside the item. (a checkmark means it is locked.) amazon basin a atacama desert b andes mountains c lake titicaca d peru e patagonia f brazil g chile h suriname

Match your vocabulary word to its definition. 1. emigration 2. immigration 3. migration 4. overpopulation 5. sustainable development 6. under population 7. unsustainable development 8. urbanization the movement from one place to another the number of people exceeds the available natural resources in an area leaving one's homeland to settle in a new place the increase in the population of a city the movement of people to a new country the ability to meet current needs without reducing the ability to meet future needs resources being used up at a faster rate than they can be replenished birth rate insufficient to replace the existing population

Which of these fragmental sedimentary rocks would most likely form farthest from the land?