Agronomy

A. William Black
B. Withey
C. Thomas Hough ten
D. Thomas Wilson

A. 7^th century AD
B. 4^th century AD
C. 10^th century AD
D. 5^th century AD

A. G.arbarieum and G. rainmundii
B. G.arbarieum and G.thurberii
C. G.arbarieum and G.barbadense
D. G.arbarieum and G.herbaceum

A. Ethipia and South Africa
B. Kenya and South Africa
C. Indonesia and Central America
D. South Mexico and Central America

A. Tetraploid
B. Diploid
C. Triploid
D. Haploid

A. G. hirsutum
B. G. arborium
C. G. barb dense
D. Non of these

A. Geology
B. Agriculture
C. Horticulture
D. Petrology