The correct options are
A Sikkim has valleys, mountains, lakes with snow and thick forests.
B It rains heavily in monsoon and many rivers flow through the valleys in Sikkim.
C Crops like maize, paddy, wheat, cardamom and ginger are grown in Sikkim.
D Sikkim also has tea and orange gardens.
Sikkim has valleys, mountains, lakes with snow and thick forests. It rains heavily in monsoon and many rivers flow through the valleys in Sikkim. Crops like maize, paddy, wheat, cardamom and ginger are grown in Sikkim. Sikkim also has tea and orange gardens.