Soil includes the decayed remains of organisms known as
sand
humus
compost
clay
Which one is not a source of carbohydrate?
Rice
Millets
Sorghum
Gram
Weeds affect the crop plants by
Killing of plants in field before they grow
Competing for various resources of crops ( plants ) causing low availability of nutrients
Dominating the plants to grow
All of the above
Milk producing cattle are called
exotic animals
milch animals
draught animals
buffaloes
Which one is an oil yielding plants among the following?
Lentil
Sunflower
Cauliflower
Hibiscus
When blood levels of thyroid hormone is low the condition is called
hypothyroidism
hyperthyroidism
mongolism
hypoglycemia
Approximately how old should a cow be when she starts milking?
2 years
1 year
6 months
3 years
Cross breeding between different genera is
intervarietal
interspecific
intrageneric
intergeneric
Bee- keeping is done for
honey
wax
both a and b
none of these
A plant used as rotation crop is
bengal gram
red gram
groundnut
all of the above