Science and art of establishment a tree crop is called____________________?

A. Angiosperm
B. Gymnosperm
C. Bryophytes
D. Zerophytes

A. Activator
B. Catalyst
C. Inhibitor
D. none

A. Potometer
B. Porometer
C. Spectrophotometer
D. Atomic absorption Spectrophotometer

A. Vitamins
B. Proteins
C. Lipids
D. Carbohydrates

A. Petals
B. Sepals
C. Perianth
D. Epidermus