Why is it called cargo when you’re transporting by ship, and why when you’re transporting by car is called shipment?

Think of cargo as something that is currently being shipped. And take shipped to mean "carried by some type of long-distance conveyance" (not limited to actual ships). A shipment usually refers to the process of moving goods. ... Cargo has a possessive implication as in the cargo of a ship or a truck's cargo

first of all wood chucks don't "chuck" wood. none, and for the fun of the answer the amount of wood chucked would be a lot!

explanation:

a wood chuck is a ground hog, it belongs to the family of large underground squirrels. it belongs to the family of marmots. ground hogs eat grasses, berry's, and other vegetation.

the following key ideas correctly express the key sentence.

restate key idea: most people can learn to swim in ten short lessons.

restate key idea: the majority of water-accident victims require mouth-to-mouth breathing.

restate key idea: an empty, tightly closed gallon jug will support a tired swimmer.  

restate key idea: first aid is to prevent accidents as well as assist in rescue.

explanation: the key idea needs to have the same topic as the key sentence (drowning and safety).