improvement of food resources

Which of the following nutrient is not supplied by fertilizers?

• N

• P

• K

• C

Answer explanation

Fertilizers are rich in nitrogen, phosphorous and potassium.

In poultry farms, broilers are raised for their

• Eggs

• Both eggs and meat

• Meat

• Neither eggs nor meat

Answer explanation

Chickens raised for eggs are known as layers, while chickens raised for meat are called broilers.

Mullets, prawns, mussels are examples of

• Marine fish

• Fresh-water fish

• Finned fish

• Shell fish

Answer explanation

Fresh water fisheries are found in ponds, tanks, rivers and various water bodies catla, rohu, mullets, and bhetki are some fresh water fisheries.

Which of the following is a animal product?

• Cereals

• Milk

• Fruits

• Pulses

Exotic breed of poultry is ?

• White leghorn

• Kajal

• Nurie

• Peela

Crops grown in rainy season are called

• Kharif crops

• Rabi crops

• Rain crop

• All of the above

Which one is a macro nutrient ?

• Magnesium

• Copper

• Iron

• Lemon

Unwanted plants in crop field are called

• seeds

• herbs

• weeds

Answer explanation

Unwanted plants in a crop field are called weeds.

For example: Parthenium, Cyperinus etc.

Weeds compete with plants for food, sunlight and space.

They reduce growth of crop plants.

Why cereal crops should be dwarf?

• It brings desirable characteristics to crops.

• Less nutrients are consumed by dwarf crops.

Murrah, surti and mehsana are the differernt breeds of ?

• Buffaloes

• Goats

• Fish

• Dog