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interactions between roacks, water, gases ,sediments and living plants and animals that are powered by solr energy and gravity are known as:
geologists recognize improtance of:
- human need to use resources
- conserving natural resources
in order to manage resources sustainably you need to :
plan for depletion and replacement
wont run out but will get expensive
65% earths soil degraded by erosion
drought, pollution and oversue threatens water resources
hard to find and increased demand can make unaffordable
used to formulate hypothesis
generate testable prediction based on hypothesis
______ controls geology of earths surface
what does theory of plate techtonics explain?
- distributions rock typs and fossils across oceans basin
- chain of volcanice islands
- past existance of supercontinent pangea
Harry Hess's theory of seafloor spreading solved problem
_____ is a solid aggregation of minerals
what are 3 types of rocks
how are igneous rocks formed?
formed from magma cooling
how are metamorphic rocks formed?
by high pressure and heat
how are sedimentary rocks formed?
despostion of sediment
geoligists study dangerous material known as _______
what are materials that occur in nature and are essential or useful to humans?
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