Which of the following statements is not true?
AWool is a natural protein fibre obtained from fleece of animals.
BSilk fibre is produced by the larvae of silkworms from their salivary glands for making a cocoon around them.
CThe quality of silk depends on the rearing (like the quality of leaves fed to the larvae and incubation temperature) and reeling practices followed.
DProcess of washing wool fibre to remove dust and grease is called ginning.
Tina is pushing a book cart in a straight line as shown here. How can Tina turn the book cart to her right?
ABy pushing the book cart faster
BBy pushing on the left side of the book cart
CBy pulling the book cart backward
DBy pulling on the left side of the book cart
Ans is B
Which observation is most likely made about the given model?
ASoil erosion occurs when moving water flows over the soil.
BWater drops formed on the glass cover fall back on the plants.
CThe snail prefers to drink water drops than fresh water.
DPlants grow better when planted outside than when planted inside.
Answer is B
Which of the following Venn diagrams correctly represents the relationship amongst, "Carrot, Food, Vegetable" ?
Answer is A.
Which of the following statements are correct?
(i) The shape of a shadow depends on the position of the source of light.
(ii) A plane mirror can change the direction of light falling on it.
(iii) A pinhole camera forms an erect image of an object on a screen.
(iv) A shadow is formed when light passes through a transparent object.
A(i) and (iii) only
B(ii) and (iv) only
C(i), (ii) and (iii) only
D(i) and (ii) only
At my farmhouse I am facing East, then I turn left and walk 10 metres. I again turn right and walk 5 metres. Again I go 5 metres towards the South, and from there walk 5 metres towards the West. In which direction am I from my farmhouse?
Which of the following statements are
I. Mixture of kidney beans and chick peas can be separated by winnowing.
II. Salt from sea water can be obtained on a large scale by evaporation.
III. An alloy is a homogeneous mixture of a metal with another metal or nonmetals.
IV. Seeds of wheat can be separated from a bundle of wheat stalks by sieving.
AII and III only
BI and IV only
CI, III and IV only
DNone of these
C is right since III is wrong and alloys can only have metals