5. If the half life of a particle is 4.5 how long will it decay 3/4 of its mass.
6. BaS04 is
A)soluble salt
B)insoluble salt
C)neutral salt
D)basic sat
7. The gas that can best be collected by downward displacement of air is
A. Ammonia
B. Carbon (iV) oxide
C. Chlorine
D. Sulphur (iV) oxide
8. The pollutant that contributes to the depletion of the ozone layer is
a)CFCs
B)CFs
C)CFS
D)CFC
9. What changes sodium pellets to liquid
a. Oxygen
b. Water vapour
c. Carbon(Iv) oxide
d. Nitrogen
10. The compound used as “antifreeze” in car radiators in cold regions of the world is
A. Ethanol
B. Ethylene glycol
C. EthlBIOLOGY
1. The kind of joint found in the scapula of a mammals is……
A.sliding and gliding
B. Hinge joint
C. Pivot joints
D. Ball and socket.
2. The kind of joint found in the pelvic which runs the femur of a mammals is……
A.sliding and gliding
B. Hinge joint
C. Pivot joints
D. Ball and socket.
3. The kind of joint found in the knee and elbow of a mammals is……
A.sliding and gliding
B. Hinge joint
C. Pivot joints
D. Ball and socket.
4. The kind of joint found in between the atlas and axis vertebrae of a mammals is……
A.sliding and gliding
B. Hinge joint
C. Pivot joints
D. Ball and socket.
5. Structure joint is also found as no option………..
The structure that allows the free movement of the bones meeting at the joint is called……………….
A. Synovial fluid
B. Synovial membrane
C. Synovial ligament.
D. Synovial Cavity.
6. Which of this is not a excretory product In man.
A.urine B.sweat C.faeces D.carbondioxide
7. A grasshopper respires by means of what?
8. In life Organisation, Hydra is?
A organ
B. Tissue
C. System
D. cell
9. a criminal can be traced through which of the following
A.. blood group B. fingerprint C. genotype
10. In adult Red blood cells are produced from the
A-spleen&liver
B-bone marrow
C-thymus
11. The mode of nutrition In which digestion is extra cellular is
A)saprophytic
B)parasitic
C)holophytic
D)holozoic Physics
1. Which of the following is a poor conductor of electricity
A)Soapy water
B)cold water
C)distilled water
D)None
2. If a reverse-biased voltage is applied across a p-n junction, the depletion layer width is
A. Increased
B. Decreased
C. Constant
D. Halved
3. A semi conductor in which the holes are excess is .
a. P-type
b. N- type
C. P-n type
D. Ohmic type
4. Which of the following is a poor conductor of electricity
A)Soapy water
B)cold water
C)distilled water
D)None
5. In a series resonant circuit , the current flowing in the circuit is
A. Max
B. Min
C. Zero
D. Unaffected.Life Changer
1) Unmi family was
a}poor
b} affluent
c}Rich
d} Average
2) Umi husband is a………
a} business man
b} teacher
c} banker
d} civil servant
3) Salma was concious of her…………..
a} inconsiderate behavior
b} dressing
c}past memories
4} Umi shared Salma’s EMAL story to givers her children _______
a} retribution
b} warning
c} moral development
d} educational background.
5) Omars father occupation was …….
A business man
B police man
C banker
D teacher
6) how did Umi feel during her registration …….
.
7. Bint’s parents encouraged her to take French because of all but one of these reasons——
A)They believe that French professionals are high in damand
B)They believe that language acquisition at an early age is relatively easy
C)They believe that learning a language at early age takes minimal effort
D)They believe that French was second to English in ranking of international languages
8. Salma was concious of her…………..
a} inconsiderate behavior
b} dressing
c}past memories
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