NVJDC-Earth Day

The population of turtles in the pond is 25. If the population doubles every year, after how many years will the turtle population exceed 500 ?

• 4 years

• 5 years

• 3 years

• 10 years

Jill recycled 424 pounds of waste from her school- paper and plastic . If there was three times as much paper as plastic by weight, how much paper was recycled?

• 424 pounds

• 318 pounds

• 106 pounds

• 212 pounds

Scientists have recorded that the population of fish in a certain reef have been decreasing by 20% each year. If the population is currently 6000, what was the population last year?

• 6200

• 7200

• 8200

• 9200

The class is going to re-use tin cans as planters. Each can has a diameter of 4 cm and height of 10 cm and is going to be three quarters filled with soil. To the nearest whole number, what is the volume of soil needed for each can?

• 141 cm³

• 104 cm³

• 84 cm³

• 94 cm³