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WorksheetsQuiz 2
Total questions: 10
Worksheet time: 20mins
Deforestation is....
helpful to the land
removing the top layer of dirt
the removal of forests to use the land for other reasons
Which human action can cause pollution?
Walking
Biking
Mining
Pollution causes the pH of rain water fall below 6. What is such type of rain called?
Acid rain
polluted rain
low pH rain
About how many people live on Earth today?
about 100 million
about 6.7 billion
about 10 billion
Which term refers to pollution from a source that can be identified?
groundwater runoff
nonpoint-source pollution
point-source pollution
Which are compounds that contain carbon and other elements held together by covalent bonds?
organic
covalent
inorganic
Oxygen enters the body through which system?
Circulatory
Endocrine
respiratory
Complete the diagram:
(A) refers to (a)
Complete the diagram:
(B) refers to (a)
Complete the diagram:
(C) refers to (a)
