It's the feminine form of quel which means which
Which house is yours? - Quelle maison est à vous ?
"Sur quelle rue" means "on what street?" in English.
"c'est de quelle couleur" means "what color is it ?" or "what color is this?"
"Tu es en quelle classe?" translates to "What grade are you in?" in English.
Quelle est ta leçon préférée? means - what (or which) is your favourite lesson?
"De quelle nationalité" means "of what nationality" in French. It is used to ask about someone's nationality or the country they are from.
quelle jolie famille
at what time usually ? is the translation for "d'habitude à quelle heure".
"Sur quelle rue" means "on what street?" in English.
De quelle nationalité es-tu? = What nationality are you?
what an horror, what an abomination.
'mais quelle est cette ...' means but what is this (thing) / who is this (person).
"c'est de quelle couleur" means "what color is it ?" or "what color is this?"
It means literally "at what hour" or at what time.
"quelle jolie femme" means "what pretty woman? / what a pretty woman!" in French.
Which season is it
It means: on what page
à quelle heure as-tu faim means 'at what time are you hungry' in English.