Option “4” is correct Vermiculture means worm growing or worm farming. When earthworms are used primarily for the production of compost, the practice is referred to as vermicomposting.
542. The gas released during the photosynthesis by the green plants is-
1. Oxygen
2. Nitrogen
3. Water vapour
4. Carbon dioxide
Option “1” is correct Oxygen is released as a by-product in the process of photosynthesis by green plants.
543. BCG vaccine is given in-
1. Pneumonia
2. Whooping cough
3. Tetanus
4. T.B.
Option “4” is correct The vaccine of BCG should proculate just after the birth of a baby to prevent T.B.
544. Of the following, ELISA Test is performed to test-
1. Diabetes
2. Tuberculosis
3. AIDS
4. None of these
Option “3” is correct An ELISA test may be used to diagnose: Hiv Lyme Disease Pernicious Rotavirus
545. Which disease is caused by allergy?
1. Diabetes
2. Cholera
3. Ringworm
4. Asthma
Option “4” is correct An allergy is a reaction by your immune system to some-thing that does not bother most other people. People who have allergies often are sensitive to more than one thing. Asthma is caused by allergy.
546. Who discovered the polio vaccine?
1. Alexander Fleming
2. Jones Salk
3. Robert Koch
4. Edward Jenner
Option “2” is correct Polio vaccine was discovered by Jones Salk.
547. Which of the following is an egg laying mammal?
1. Bat
2. Leafy-Ant eater
3. Whale
4. Spiny Ant-eater
Option “4” is correct Spiny ant-eater is an egg laying mammal.
548. Which one of the following is the smallest bird?
1. Peacock
2. Penguin
3. Humming bird
4. Emu
Option “3” is correct Humming birds (Mellisuga Helenae), which live in Cuba, weigh 0.056 ounces and are 2.75 inches in length, is the smallest bird. The bill and tail account for half of this length.
549. Flat footed camels can walk easily in sandy deserts because –
1. Pressure on the sand is decreased by increasing the area of the surface in contact
2. Pressure on the sand is increased by increasing the area of the surface in contact
3. Pressure on the sand is decreased by decreasing the area of the surface in contact
4. Pressure on the sand is increased by decreasing the area of the surface in contact
Option “1” is correct Flat footed camels can walk easily in sandy deserts because pressure on the sand is decreased by increasing the area of the surface in contact.
550. An instrument for measuring blood pressure is called –
