Which of these is INCORRECT about roughage?
A It helps in making blood.
B It helps in repairing the damaged parts of the body.
C It helps the body to get rid of undigested food.
D Both a and b
WHAT IS THE ANSWER
Consider the following statements regarding silk moth.
I.The female silk moth lays eggs which hatch into pupa.
II.The caterpillar secretes a fibre made of a protein, which hardens on exposure to air.
III.The silk fibre is obtained from the cocoon of the moth.
IV.The caterpillar covers itself by silk fibres and enters the adult stage. Among the given statements,
Aonly I is correct
Bonly II is correct
Cboth I and IV are correct
Dboth II and III are correct
Which of the following statements regarding weathering is not correct?
AHeat and heavy rainfall increase the rate of weathering.
BRocks of different compositions weather at different rates.
CThe longer a rock is exposed at the surface, the more weathered it will be.
DThe presence of soil increases the rate of weathering in the underlying bedrock.
Please tell the answer
Which figure shows the position that Rajat should take to minimise the chance of getting struck by lightning?
In the NCERT book, the explanation is given that one must squat low to avoid lightening. But here it is mentioned something else. Please explain.
You were given some plants or twigs of plants like brinjal, wheat, neem, banana and China rose. From them you were asked to select two plants, one which is a herb having tap root and leaves showing parallel venation and the other also a herb but with leaves showing parallel venation and fibrous roots. Which two plants would you select for the same?
In this question the correct answer is 'A' but nor brinjal is a herb neither wheat and pls tell if it is possible that a plant can have parallel venation but has tap root ?
In which of the following agricultural setups, the nutrient needs of one crop are fulfilled by the other crop ?
Please Explain Why
Direction : Read the given paragraph carefully and answer the questions 46 and 47.
Refer to the given figure.
A thin bar is hinged to the wall. It remains in equilibrium. Five forces acting on the bar are shown in the figure.
What is the moment due to the force Y?
A0 N m
B10 N m
C20 N m
A beam of light from a torch is aimed at an arrangement of four plane mirrors. Which diagram correctly shows the path that the light beam follows?