AP Environmental Math

I-131 has a half life of about 8 days. if an original sample weights 240kg, how many kg will remain after 32 days? (Half-life)

• 15

• 30

• 45

• 60

• 120

One gallon of fuel produces 5 lbs of CO2. Two cars drive 100 miles each. The first gets 10 MPG. The second gets 25 MPG. How much LESS CO2 is produced by the second car?

• 10 pounds

• 50 pounds

• 30 pounds 

• 15 pounds

Tags

NGSS.MS-PS3-5

Strontium-90 has a half-life of 29 years. If a site held 2000 kg of this isotope, approximately what mass of Strontium-90 would be left after 116 years?

• 1000 kg

• 500 kg

• 250 kg

• 125 kg

Tags

NGSS.HS-PS1-8

Environmental Science for AP* provides us with AP-style multiple choice, FRQ, and math questions to practice in each chapter.

• True

• False

A factory emits 200 tons of CO2 annually. If a new technology reduces emissions by 15%, how many tons of CO2 will the factory emit after the reduction?

• 170 tons

• 180 tons

• 190 tons

• 200 tons

Tags

NGSS.MS-ESS3-3

If a car travels 300 miles and emits 0.9 pounds of CO2 per mile, how much CO2 does it emit in total?

• 270 pounds

• 300 pounds

• 2700 pounds

• 3000 pounds

A wind turbine generates 2 MW of power. If it operates for 10 hours, how much energy does it produce?

• 20 MWh

• 200 MWh

• 2 MWh

• 20 kWh

A solar panel has an efficiency of 15%. If it receives 1000 watts of sunlight, how much electricity does it generate?

• 150 watts

• 850 watts

• 1000 watts

• 1150 watts

A river flows at a rate of 500 cubic meters per second. How much water flows in one hour?

• 1,800,000 cubic meters

• 30,000 cubic meters

• 500,000 cubic meters

• 3,600,000 cubic meters

A population of fish doubles every 5 years. If there are 200 fish now, how many will there be in 15 years?

• 400

• 600

• 800

• 1600