EOYA Review

Question Answer
What is an unhealthy substance in our environment? pollutant
What is urban growth? building new neighborhoods and shopping areas
What is an effect of urban growth? increase in erosion, less open land, more pollution
Why is burning coal bad for our environment? can cause sulfur dioxide and lead to acid rain
What is soil made of? rock and organic material
How much fresh water do we have on Earth? 3%
What is most of the water on Earth? salt water
What is weathering? breakdown of rocks to make sediment
What type of rock usually has fossils? sedimentary

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