Question 21.
Frank packs and weighs his school backpack. The backpack weighs
3 pounds. Then Frank puts in a textbook that weighs 25 pounds and
removes a notebook that weighs 8 ounces. Which expression can be used
to find the weight of the backpack now in ounces? (1 pound = 16 ounces)
A 48 + 32-8 C 60 + 32 - 8
B 48 + 40 - 8
D60 + 40 - 8

Coquina, a type of limestone, forms from shell fragments that settle on the ocean floor. what type of rock is coquina?

What is the "great pacific garbage patch"? a large area of marine debris concentrated by rotating ocean currents a large area around the pacific rim where debris collects from natural disasters such as tsunamis an area in the pacific ocean where trash is intentionally dumped due to lack of landfill availability a large trash dump located in hawaii

What happens when water’s salinity increases? mass decreases. freezing point decreases. buoyancy of objects decreases. the amount of dissolved minerals decreases.