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Populations
Pollution
Photosynthesis
Green house effects
100
Has the human population increased or decreased in the last 20 years?
What is increased
100
Percent of rivers that are too polluted for swimming, fishing etc.
What is 40%
100
Photo mean in the word "photosynthesis"
What is light
100
the percentage of sun's energy reaches the Earth's surface?
What is 49%
200
the current population of the earth ?
What is about 7 billion
200
Percentage of lakes in the US that are too polluted for swimming, fishing etc.
What is 46%
200
Light energy is converted to ____ energy by chlorophyll
What is chemical
300
How fast is the worlds population going?
What is 200,000 people everyday
300
Over 80% of landfills can be recycled, true or false
What is true
300
Where does the process take place in the mesophyll cells?
What is chloroplasts
300
Where does the other warmth from the sun go that doesnt reach the earth?
What is travels into space
400
The average life expectancy in the US
What is 78 years
400
____ tons of toxic chemicals are let into the air by factories in the US
What is 3 million
400
the chemical cars exaust into the atmosphere
What is CO2
500
Average children per family
What is 3.14 children
500
Vehicle exhaust contributes roughly ___ % of all carbon monoxide emissions nationwide
What is 60%
500
What are two sets of reactions in photosynthesis?
What is light dependent and light independent.