Practice
estimate. round to the greatest pla
estimate is greater than or less than the actual produ
2. $20
1. 756 x 4
800 x 4 = _
greater than
less than

Scientist: cross-sections of stalactites—calcite formations deposited on cave ceilings by seeping water—can reveal annual variations in rainfall in particular areas over hundreds and thousands of years. we often found that when—according to these cross-sections—drought occurred in a particular area, it coincided with the collapse of an ancient society in that area. i hypothesize that drought reduced agricultural productivity in these areas, thereby leaving these societies without the resources needed to handle internal stresses and external threats. which of the following, if true, would most weaken the support for the scientist's hypothesis? a. many droughts indicated in the cross-sections of stalactites do not correspond with the collapse of a society in that area. b. information from the cross-sections of stalactites alone cannot reveal the level of agricultural output in an area at a particular time. c. most of the societies that collapsed during droughts did so when internal power struggles coincided with military raids from neighboring societies. d. most of the societies that collapsed during droughts maintained large stockpiles of food and water at the time of their collapse. e. information from stalactites also suggests that the collapse of some societies coincided with periods of abnormally high rainfall.

Extensive and unusual cold snaps have occurred here recently. is this evidence that global warming is lessening or not occurring? no—although the long-term trend is for warming, short-term weather patterns can still be variable. no—melting of glaciers and ice caps is making the oceans cooler, which can cause cold snaps. yes-- if global warming really were occurring, cold snaps wouldn’t happen. yes—due to global warming, weather patterns should be become less—not more—variable.

Tone. one cool fact i found studying greek mythology is the connection to modern names. for instance, my hometown, east sparta, ohio, is named after the home of the awesome greek warriors! which revision of spencer's essay best uses a formal tone? one interesting fact i found studying greek mythology is the connection to modern names. my hometown is east sparta, ohio, which is named after the home of the fierce greek warriors. isn't it interesting how greek mythology connects to modern names? east sparta, ohio, for instance, is named after sparta in greece, which you know is home to the strong greek warriors. an interesting fact about greek mythology is its connection to many modern names. one example is east sparta, ohio, a town that takes its name from the home of greece's famous warriors. have you noticed how many modern names come from greek mythology? i didn't know until now that my hometown, east sparta, ohio, is named after the home