(Q).
Q: How does litmus paper indicate the ph value of a solution? Choices: - by texture - by shape - by smell - by color A:
(A).
by color

(Q).
Q: What element is a biochemical compound based on? Choices: - hydrogen - nitrogen - oxygen - carbon A:
(A).
carbon

(Q).
Q: Felsic, intermediate, mafic, and ultramafic are types of composition of what rock group? Choices: - Sedimentary - asteroids - metamorphic - igneous A:
(A).
igneous