APES Math Review

What would 5,000,000kg be in scientific notation?

• 6,520,000,000

• 65,200,000,000

• 652,000,000

• 652,000,000,000

How do you calculate the % change?

• (original value - new value) / new value

• [(original value - new value) / original value] x 100

• [(original value - new value) / new value] x 100

• (original value - new value) / original value

The Rule of 70 is an easy way to calculate how long it will take for a quantity growing exponentially to double in size. What is the formula?

• 70 x % growth rate= doubling time in years.

• 70 x % growth rate x 100 = doubling time in years.

• 70/% growth rate x 100 = doubling time in years.

• 70/% growth rate= doubling time in years.

How many L is 1,000,000mL?

• 1,000,000,000L

• 100L

• 1,000L

• 10,000L

Which of the following uses the correct conversion factors to determine how many seconds are in 4 years?

• 
• 

How long will it take a population to double if it's growth rate is 3.2%?

• 224 years

• 2,187 years

• 22 years

• 219 years

Answer explanation

The Rule of 70 is an easy way to calculate how long it will take for a quantity growing exponentially to double in size. The formula is simple: 70/percentage growth rate= doubling time in years.

Tags

NGSS.HS-LS2-2

If the Net Primary Productivity is 2.3 kgC/m2/year and the respiration is 1.8 kgC/m2/year. What is the gross primary productivity?

• GPP= 0.5 kgC/m2/year

• GPP= 4.1 kgC/m2/year

• GPP= 5.1 kgC/m2/year

• GPP= 1.3 kgC/m2/year

Answer explanation

NPP = GPP - R

Tags

NGSS.HS-LS2-4

NGSS.HS-LS2-5

If the GPP is 5.8 kgC/m2/year and the respiration is 2.5 kgC/m2/year. What is the NPP?

• NPP= 14.5 kgC/m2/year

• NPP= 2.3 kgC/m2/year

• NPP= 8.3 kgC/m2/year

• NPP= 3.3 kgC/m2/year

Answer explanation

NPP = GPP - R

Tags

NGSS.HS-LS2-4

NGSS.HS-LS2-5

If the GPP is 7.8 kgC/m2/year and the NPP is 5.9 kgC/m2/year. What is the R?

• R= 9.7 kgC/m2/year

• R= 1.9 kgC/m2/year

• R= 1.3 kgC/m2/year

• R= 46 kgC/m2/year

Answer explanation

NPP = GPP - R

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-4

NGSS.HS-LS2-5