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Chemistry 20 Online
OpenStudy (anonymous):

Thursdays Pre-Test questions; reward and medal for all four questions help 8.)what are the main parts of a water cycle? 11.) how can changes affect a ecosystem 16.) how does transfer of energy throughout an ecosystem begin 23.) what process moves hot materials move toward the surface?

OpenStudy (shamil98):

23 - exothermic? 11 - changes like cutting trees or forests down could harm the animals that live there and their food chain.

OpenStudy (shamil98):

condensation, precipitation, evaporation for number 8 ( those are the most commonly known) there is also accumulation and transpiration

OpenStudy (anonymous):

thanks!!!! what about 16? I asked that too in this post

OpenStudy (shamil98):

google it ._. sorry I don't remember that . >.<

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