Insulators prevent the loss of heat. a company is designing a mug that will keep coffee warm for a long time. which one of these materials would do this best?     a. copper    b. steel    c. lead    d. rubber

scientists have discovered that hiv does not cause aids by the virus's direct effect on the host's immune cells, but rather through the cells' lethal influence on one another. researchers from the gladstone institutes have revealed that hiv does not cause aids by the virus's

i might be wrong but i think its a. let me know if i’m right and have a good rest of your day!

c. heat from the poles back down towards the equator.

the law of original horizontality explains:   why rocks appear in layers. correct answer: b the law suggests that all rock layers are originally laid down (deposited) horizontally and can later be deformed.   the principle is used by geologists to make assumptions about the relative ages of sedimentary rocks.