Identify the correct part of speech of the highlighted words in this paragraph

"In the bustling city, cars zoomed past, honking their horns impatiently. People hurriedly walked along the crowded sidewalks, clutching their umbrellas tightly as rain poured down. Laughter echoed from nearby cafes, filling the air with a cheerful ambience. Streetlights illuminated the darkening streets, creating a warm glow."