Is this an appropriate opening sentence for a argumentative purpose?

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.

What type of evidence is provided in lines 12-17 of king arthur’s knights to support the reason percival’s mother took him away to the countryside? statistics case studies facts logical appeals

Read the excerpt from the war of the worlds, which includes a description of setting shortly after the martians' first deadly attack.the undulating common seemed now dark almost to blackness, except where its roadways lay grey and pale under the deep blue sky of the early night. it was dark, and suddenly void of men. overhead the stars were mustering, and in the west the sky was still a pale, bright, almost greenish blue. the tops of the pine trees and the roofs of horsell came out sharp and black against the western afterglow. the martians and their appliances were altogether invisible, save for that thin mast upon which their restless mirror wobbled. patches of bush and isolated trees here and there smoked and glowed still, and the houses towards woking station were sending up spires of flame into the stillness of the evening air.what options accurately explain how the narrator's feelings are reflected in the setting? (select all that apply.)the war of the worldsthe narrator is comforted by the oncoming evening, as reflected in the setting details. for example, he says the martians are invisible.the narrator is distressed by the deceptive quiet of the evening, as reflected in the setting details. for example, he still sees smoke from the widespread destruction.the setting details to reveal the narrator's feelings of both relief and apprehension. for example, although the martians are not seen any longer, the remnants of the attack are still quite visible, and it's not clear whether the danger is over.the setting details reflect the narrator's feelings of both fascination and relief. for example, although one of the martians' odd tools is still visible, the creatures themselves no longer pose a threat.