Does it take more power to walk quickly or climb stairs slowly?

Magnesium is the fourth most abundant mineral in the body and is essential to good health. magnesium is needed for more than 300 biochemical reactions in the body. it maintain normal muscle and nerve function, keep bones strong, keep one’s heart rhythm steady, and supports a healthy immune system. magnesium also regulate blood sugar levels, promotes normal blood pressure, and may play a role in energy metabolism and protein synthesis. doctors and scientists are trying to determine whether magnesium may play a role in preventing and managing disorders such as hypertension, cardiovascular disease, and diabetes. which is the main idea of this paragraph? a. the role of magnesium in human nutrition is being studied intensely. b. magnesium may be related to the body’s metabolism and other healthy functions. c. magnesium appears to contribute to hypertension, cardiovascular disease, and diabetes. d. magnesium and a healthy immune system are separate diseases.

Select the contred text in the passage which sentence in this excerpt from john galsworthy's narrative essay "gone" reflects his view that there is no afterlife? an old woman and mrs. herd's sister were in the sitting-room, they showed us to the crazy, narrow stairway. though we lived distant but four hundred yards of a crows flight, we had never seen mrs. herd before, for that is the way of things in this land of minding one's own business a slight dark girlish-looking woman, almost quite refined away, and with those eyes of the dying, where the spirit is coming through, as it only does when it knows that al is over except just the passing. she lay in a double bed with clean white sheets. a white-washed room, so low that the ceiling almost touched our heads, some flowers in a bow, the small lattice window open. though it was hot in there, it was better far than the rooms of most families in towns, living on a wage of twice as much, for here was no sign of defeat in decency or cleanliness. in her face, as in poor herd's, was that same strange minging of resigned despair and almost eager appeal, so terrible to disappoint. yet, trying not to disappoint it, one felt guilty of treachery: what was the good, the kindness in making this poor bird flutter still with hope against the bars, when fast prison had so surely closed in round her? but what else could we do? we could not give her those glib assurances that naive souls make so easily to others concerning their after state. and the night was so beautiful, so utterly glamourously beautiful, with its star-flowers, and its silence and its trees clothed in moonlight. all was tranquil as a dream of sleep. but it was long before our hearts wandering with poor herd, would let us remember that she had slipped away into so beautiful a dream

Which of these can an adverbial clause modify?