General Science QUESTIONS AND ANSWERS

General Knowledge : General Science QUESTIONS AND ANSWERS :: part19 : 86 to 90

Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :

86.Desert plants would be characterised by :

vivipary

aerenchyma

aerial roots

sunken stomata

87.Which of the following statements are true in relation to transpiration and water movements in plants ?1. Removing all the levels from a plant will reduce the flow of water up the stem.2. Covering both sides of a leaf with a plastic film will reduce both stomatal and cuticular transpiration.3. Injecting detergents (which lower the surface tension of water) into the xylem of tree trunk could prevent water from reaching the upper branches.4. Along most of its route through a plant, water moves by diffusion either along cell walls or across protoplasts.

1, 2 and 3

1, 2 and 4

1, 3 and 4

2, 3 and 4

88.If the earth were 3 times as far from the sum as it is now, how would the gravitational attraction compare with its present value ?

The gravitational attraction would be 9 times its present amount

The gravitational attraction would be double its present amount

The gravitational attraction would be 1/9 of its present amount

None of the above would be true

89.In the balanced dietaries for a day of an adult working man, weights of carbohydrate food and total protein food (both superior and inferior) should be in order of :

420 gm and 420 gm respectively

420 gm and 600 gm respectively

600 gm and 420 gm respectively

600 gm and 600 gm respectively

90.Which of the following are most penetrating ?

Alpha rays

Beta rays

Gamma rays

X-rays

More General Science QUESTIONS AND ANSWERS available in next pages