Science MCQ ,ADRE 2.0,Assam Police SI,UB/ABআগন্তুক চাকৰি পৰীক্ষাৰ বাবে নোট

 

MCQ FOR ADRE/UB/AB SI ASSAM 

1.The  white powder produced when  a magnesium ribbon is burnt in air is –

(a)Magnesium Carbonate

(b)Magnesium Oxide

(c)Carbon Die oxide

(d)Sodium Oxide

2.pH  range of acid rain is

(a)less than 5.6

(b)more than 5.6

(c)7.0-8.0

(d)7

3.Which one of the  following  enzymes is secreated by the glands present in the walls of our buccal cavity .

(a)Lipase

(b)Pepsin

(c)Trypsin

(d)Salivery amylase

4.Which one of the following organisms breaks down the food material outside the body and then absorbs it-

(a)Mushrooms

(b)Cuscuta

(c)Tape-worms

(d)House-fly

5.Which Part of the following parts of blood is invoved in the re-pairing of blood vessels?

(a)Red Blood Corpuscle (RED)

(b)White Blood Corpuscle (WBC)

(c)Plasma

(d)Platelets

6.Which Parts of  our brain receive the sensation of touch  smell ,taste and sight –

(a)Fore-brain

(b)Mid-Brain

(c)Cerebellum

(d)Medulla

7.Deficiency of the following hormone leads to a diseae called goiter-

(a)Thyroxine

(b)Testoroxine

(b)Thyroxine

(d)Adrenellin.

8.Rhizopous reproduced by by-

(a)Spore formation

(b)Budding

(c)Fission

(d)Vegetative Propagation.

9.The physical basis of heredity is-

(a)Nucleus

(b)Cytop;lasm

(c)Chromosome

(d)None of these

10.Which of the following mirros has the widest field of view –

(a)Plane

(b)Convex

(c)Concave

(d)None of these.

 

About of some topic :-

(a)Life process  :- The processes which together perfrom the maintenance functions in living organisms are know as life process.

(b)Photosynthesis :- The Processes in which the autotrophic  organisms take in carbon dioxide and water from the outside and convert them into carbohydrate in the presence of sunlight and chlorophyll is called photosynthesis.

(c)White light :-Any light that gives a spectrum  similar to  that of sunlight is referred to as white  light.