The day has less hours of sunlight in the winter because the northern hemisphere tilts the sun. also, the sun's rays do not aim directly on the land and the water. this causes winter to be cooler or cold.

the answer is the northern hemisphere tilts toward the sun

the correct answer is anaphylaxis.

anaphylaxis is a condition caused by insect bites, foods, medications, manifested by tongue swelling, shortness of breath, vomiting, low blood pressure. it sometimes may occur without an obvious reason. it is treated with epinephrine injection.other tretments include antihistamines and steroids,