Beena, Shalu and Navpreet wanted to find out who among them had the biggest lung capacity. They decided to blow into a balloon with one breath and see how big it will become. Which of the following factors they must keep the same to make the test a fair one?
1. Colour and design pattern of the balloon
2. Size and shape of the balloon
3. When to breathe in forcibly before blowing
4. Material, balloon is made of
A 1 and 2 only
B 2 and 3 only
C 1, 3 and 4 only
D 2, 3 and 4 only
The answer is D
Sameer uses dumbbell to exercise. Which body systems are involved in bending and straightening of the arm?
A Muscular and Excretory systems
B Digestive and Nervous systems
C Muscular and Skeletal systems
D Skeletal and Reproductive systems
The answer is C
Which of the following is not correctly matched?
AThermoplastics - PVC and polystyrene
BPolycot - Polythene and cotton
CMelamine - Fire proof plastic
DRayon - Regenerated fibre
it is option d. Because polycot is polythene and cotton. Rayon is not a regenerated fibre
A negatively charged rod is moved near conducting sphere as shown. What will be the movements of the electrons and protons in the conducting sphere?
|A||move to left||move to right|
|B||move to right||move to left|
|C||does not move||move to left|
|D||move to right||does not move|
Study the given relationship.
Select the option which correctly satisfies the same correlation.
ALimestone : Gneiss : Pumice
BBasalt : Granite : Slate
CMarble : Shale : Granite
DShale : Basalt : Pumice
Electroscope is used
A To detect and test small electric charges
B To calculate the amount of electric charge flowing through the conductor in the given interval of time
C To find out the presence of antimatter
D To test the presence of magnetic field.
Which of the following statements are incorrect?
1.A change in state will result in a change in volume.
2.A change in state will result in a change in substance.
3.A change in state will result in a change in weight.
4.A change in state will result in a change in mass.
A1 and 4
B2 and 3
C2, 3 and 4
DAll of these
___________ is separated from water by a method different from the method used to separate the other three substances given in the options.
C Coffee powder
D Chalk powder
How can be wrong
How many different shapes are there in the figure?
the correct answer should be 5 as there is a circle square triangle rectangle and semi-circle