Q.11)-The medicinal plant used in preparations for skin care is
- Cinchona
- Amla
- Aloevera
- Rauwolfia
Q.12)-Growing more than one crop n a piece of land during the year is known as
- Uni cropping
- Multipe cropping
- Double cropping
- Tripple cropping
Q.13)-The froduction of alcohol from organic compunds by micro organisms is known as
- Combustion
- Fermentation
- Anaerobic Respiration
- Aerobic Respiration
Q.14)-Bio-diesel mostly produced by
- Myrttaceae
- Malvaceae
- Liliaceae
- Duphorbiaceae
Q.15)-The enzyme that coagulates milk into curd is
- Rennin
- Pepsin
- Resin
- Citrate
Q.16)-From the bark of which plant is Quinone extracted
- Eucalyptus
- Cinchona
- Neem
- Cedar
Q.17)-Chewing gum is made from
- Resin
- Tannin
- Latex
- Gum
Q.18)-Which one of the following animal is called farmer's friend
- Ant
- Eathworm
- Bee
- butterfly
Q.19)-The enqyme in whose presence giucose and fructose are converted into alcohol is
- Diastase
- Maltase
- Invertase
- Zymase
Q.20)-Butter is
- Fat dispersed in milk
- Water dispersed in fat
- Water dispersed in oil
- Fat dispersed in water