Answer:
B.
Explanation:
Because a Longitudinal wave is a wave vibrating in the direction of propagation.
Answer:
D giardiasis is the correct answer :)
Some names are:
Raw cotton - Textiles
Limestoe - Cement
Iron ore - Steel
Bauxite - Aluminium
Wool - Woollen cloth
Soya seed - Soil oil
Mustard seed - Mustard oil
Ground nut - Ground nut oil
Sugar cane - Sugar
Hides and skins - Leather
Naphtha - Petrochemicals