How many sentences should be in a paragraph?

What excerpt from a student essay maintains the most objective tone

Which would be the most credible source for researching the effects of smoking? letter from your grandfather web page about someone’s lung cancer report prepared by a tobacco company research article in a scientific journal

Which text evidence from the passage supports the theme that even nonliving things contain a life force? select two options.it was close and dry and dusty in the house of the gods.” “i have said the magic was gone but that is not true—it had gone from the magic things but it had not gone from the place.” “i felt the spirits about me, weighing upon me.” “nor had i ever slept in a dead place before—and yet, tonight, i must sleep there.” “when i thought of it, my tongue felt dry in my throat, in spite of my wish for knowledge.” “almost i would have gone down again and faced the dogs, but i did not.”