A Light Year is a mesurement of 5.879e+12 miles Compressed into one unit of mesurement or a "Light Year"
Light Years are used in the measurement of the universe because, to put it simply, SPACE IS BIG! The use of Light Years (5.879e+12 miles) Breaks the observable universe down into manageable chunks for astrologists.
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Answer:
- corrosion
- bases
- 7
- It warys of how much concentration there is
- over 7
EXPLANATION:
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Landfills are harfull to the environment because many substances cannot decompose like styrofoam and all this matter keeps building up but never decomposes
Answer:
caves and sinkholes
Explanation:
caves and sinkholes are associated with karst topography because they are some of the main features.