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Earth systems and interactions 2
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Earth systems interact by exchanging _____________ and ____________.
matter, energy
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______ are formed by weathering and erosion of rocks.
Sediments
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How does clearing forests disrupt phosphorus cycle?
clearing forests expose soil, rain can wash away phosphorus from soil
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Plants absorb phosphorus from either ________ or _________.
soil, water
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What is the compound that consists of phosphorus and oxygen elements commonly found in the earth systems?
phosphates
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How do animals return phosphates to the soil?
by animal waste or decomposition when they are dead.
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How can excess phosphorus in a lake harm fish?
Algal bloom and excess algae decomposition and use up oxygen in water
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Which type of rocks are formed by cooling and crystallization of magma?
igneous rocks
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The largest phosphorus reservoir is the _________ (earth system).
geosphere
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Phosphorus does not cycle through which earth system?
atmosphere
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Phosphorus recycles at the highest rate in which earth system?
biosphere
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The gases in the atmosphere that absorb and re-radiate thermal energy from the Sun are called ______________.
greenhouse gases
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How can excess phosphorus in a lake kill underwater aquatic plants?
Algal bloom blocks sunlight needed by photosynthesizing aquatic plants.
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Which type of rocks are formed by deposition, compaction, and cementation?
sedimentary rocks
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