Multiple choice
1. when did home video game systems first become very popular?
-in the late 1960s
- in the mid-1970s
- in the early 1990s

2. which of these best describes a corporation with a hierarchical structure?
- different workers have specific roles and different levels of authority.
- workers take on many different responsibilities and frequently change jobs.
- workers who do their jobs well are frequently rewarded and given opportunities to advance.

3. which sentence below is correctly punctuated?
-richard bushnell, who attended the university of utah, enjoyed playing computer games in college.
-bushnell hired steve jobs who later became the ceo of apple computers.
- the version of pong, that atari introduced, was extremely popular.

Ibet no one will do it 9 how can a geological time scale best be reconstructed? a) comparing vestigial structures in living species eliminate b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures 11 lake effect snow storms are unique weather patterns that occur in only three places in the world: the great lakes, hudson bay's eastern shore, and the west coasts of two japanese islands. lake effect snowstorms occur under very specific conditions. 1. as cold air streams across warm lakes, it becomes warmer and more humid, causing it to become less dense and then rise. 2. as the air rises, it cools, sometimes forming clouds causing precipitation; as the air keeps moving over the lake, more moisture is drawn upward to form more clouds. 3. ? which statement best summarizes the final step in lake effect snow formation? a) from the opposite side of the lake, warm air will stream across the lake toward the convective cloud; when it reaches the cloud, the air cools and snow falls. b) these convective clouds cannot hold the large amount of evaporated water, so when the air moves over land, the moisture condenses to snow, causing the "lake effect snow." c) clouds continue to grow larger as more water is evaporated from the lake, causing them to become still over the lake; snow falls when the air in the clouds become too cold. d) large amounts of rain will fall from this convective cloud, causing the air temperature above the lake to drop; rain condenses to snow in the cooler air, causing the "lake effect snow." what might have caused this canyon to form? a) winds blowing in zig-zag way b) frequent earthquakes in the area c) water breaking the rocks into pieces d) heavy rainfall flooding the part of the land