Using computer too much may have ..... effects on your studying. (harm)

........a horse is one of the skills every nomadic child in Mongolia has to learn.(ride)
Using computer too much may have........effects on your studying.(harm)
Nick is a........, kind and generous friend.(social)
the Sworld lake is one of the......places in Hanoi.(History)
Is there any......to treat her badly?(necessary)
Terraced rice fields in Sa Pa are slopes claimed for cultivation in hilly or........areas.(mountain)
For the Muong, rice is also the main......crop.(agriculture)
The Muong call their......calendar "sach doi", which is made from 2 bamboo sticks that represent the 2 month.(tradition)