When did color photography became common?

What is the definition of aesthetics? a. the material or materials used by an artist to create artwork b. the branch of philosophy that deals with beauty and how it is expressed and appreciated c. the organization or arrangement of different elements within a work of art o d. the school of thought dedicated to examining the question, "what is art? "

2.the bottom number of a time signature tells a. what kind of note equals one beat. b. how many beats are in the measure. c. how many measures are in the song. d. the tempo of the song 3. in the time signature 24, the is equal to one beat. a. half noted b. quarter note c. eighth note d. dotted half note 4. in compound meters, the beat is evenly divided . a. three b. five c. four d. two 5. in cut time a(n) equal to one beat. a. quarter note b. eighth note c. dotted quarter note d. half note 6. which of the following is not a dynamic marking? a. mezzo forte b. diminuendo c. alla breve d. pianissimo 7. are rhythmically equivalent to a half note. a. quarter b. whole c. sixteenth d. eighth 8. are rhythmically equivalent to a dotted quarter note. a. sixteenth b. quarter c. half d. eighth 9. to the degree of complexity of one or more musical parts that occur simultaneously. a. meter b. texture c. improvisation d. dynamics 10. which of the following pairs are not synonyms? a. alla breve, cut time b. meter, time signature c. note, pitch d. crescendo diminuendo

The paintings in the lascaux cave were discovered by who?