Process: - The blood sugar drops in a body - Cells in the pancrease release glucagon - The liver in response turns the glucagon into glucose - And releases it into the blood - The blood sugar levels are restored.  Question: suppose less glucose released happens, how will it affect LESS regulation of blood sugar level being needed.  - A: more - B: less - C: no effect
Ans: A

Process: - When water freezes it becomes 10% bigger, or takes up 10% more space - As water expands it puts great pressure on the walls of anything containing it, including any rocks which happen to be surrounding it - The force of the pressure exerted on the rock surrounding it is enough to wedge the walls of the crack farther apart, thus expanding and deepening the crack - Clay expends when wet like ice does - This causes rock to break apart - Some plants like mosses and lichens are capable of growing without soil on bare rock - When they do this their roots penetrate pores and crevices and cause rocks to split apart as the roots force their way down through the rocks -   Question: suppose the earth gets hotter happens, how will it affect a greater volume of water is present.  - A: more - B: less - C: no effect
Ans: B

Process: - You place aluminum cans and other products into recycling bins - Your town or a private company collect and transport the aluminum to a recycling facility - The aluminum is sorted and cleaned at the central recycling facility - The aluminum is melted down to remove coatings and inks - The melted aluminum is formed into large formations called ingots - The ingots are transported to another facility and rolled out to make them easier to manipulate - The ingots can now be turned into new aluminum products.  Question: suppose more aluminum melted down happens, how will it affect LESS aluminum cans being recycled.  - A: more - B: less - C: no effect
Ans: B

Process: - Dead organic material accumulates on the bottom of oceans, riverbeds or swamps, mixing with mud and sand - Over time, more sediment piles on top - The resulting heat and pressure transforms the organic layer into a dark and waxy substance known as kerogen - Left alone, the kerogen molecules eventually crack - The molecules break up into shorter and lighter molecules composed almost solely of carbon and hydrogen atoms - It will turn into either petroleum or natural gas -   Question: suppose healthy kidney without problems happens, how will it affect LESS oil.  - A: more - B: less - C: no effect

Ans: C