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exam review
exam review for science
Question | Answer |
---|---|
which of the following is not one of the compositional layers of Earth? | mesosphere |
ozone is a molecule made up of? | 3 oxogen atoms |
the most abondant gas in Earth's atmosphere | nitrogen |
the boundry between warm and cold water is an ocean or lake is | |
Valcanoes occur at tectonic plate boundaries that are | colliding & separating from one another |
the richter scale best describes the magnitude of an earthquake | |
a volcano is a mountain built from | magma |
what kind of natural disaster helps some forest communties by allowing some trees to release their seeds, by clearing away deadwood, and by encouraging new growth | fire |
is freshwater algae a photosynthetic organism | yes |
consumers are organisms that | get solar energy inderectly |
organism that that obtains energy from producers | herbivores |
where would an ecologist be least likely to go to study primary seccession | the Amazon rain forest |
what term is used to refer to the main feeding relationship that are possible in a n ecosystem | food web |
which plant is likely to be a pioner species | shrub |
what type of seccession occurs after a natural process such as a volcanic eruption or flud | secondary succession |
which gas makes up 78% of our atmosphere but can be used by plants only when transformed by bacteria first | nitrogen |