Which of the following is not present in the given word grid?
AA strong tropical storm with fast spinning winds called as hurricane in Southern USA.
BNatural disasters caused due to excessive or no rainfall at all in an area
CAn opening or rupture in Earth’s surface or crust through which hot molten rock, ash and gases escape
DA natural havoc whose intensity is measured on a seismograph
The given figure shows plant parts labelled as P, Q, R and S. Which of the following options correctly list the plants in which labelled part is edible?
AP - Broccoli, Cauliflower, Lettuce
BQ - Tapioca, Turnip, Onion
CR - Coriander, Spinach, Fenugreek
DS - Potato, Ginger, Sweet potato.
Refer to the given Venn diagram and select the incorrect statement regarding P-S.
AP could be Bacillus anthracis that causes anthrax.
BQ could be Vibrio cholerae that causes cholera in humans.
CR could be Chlamydomonas that is distributed widely in fresh water.
DS could be Giardia that causes intestinal infection in humans.
Observe the given changes and select the correct option.
A I, II and III, all are reversible changes.
B I and III are reversible changes while II is a irreversible change.
C I, II and III, all are irreversible changes.
D I is a chemical change while II and III are physical irreversible changes.
Match column I with column II and select the correct option from the codes given below.
|Column I||Column II|
|(A) Floods||(i) Aquifers|
|(B) Groundwater||(ii) Salt water|
|(C) Ocean||(iii) Rain|
|(D) Precipitation||(iv) Dirt and water vapour|
|(E) Clouds||(v) Excess rain|
A (A) - (i), (B) - (ii), (C) - (iii), (D) - (iv), (E) - (v)
B (A) - (v), (B) - (i), (C) - (ii), (D) - (iii), (E) - (iv)
C (A) - (i), (B) - (v), (C) - (iii), (D) - (ii), (E) - (iv)
D (A) - (v), (B) - (i), (C) - (iii), (D) - (ii), (E) - (iv)
Three identical bulbs A, B and C are given. What changes occur in the brightness of bulbs A and B, when the switch S is closed?
ABrightness of A increases but that of B decreases.
BBrightness of A remains the same but that of B decreases.
CBrightness of both A and B decreases.
DBrightness of both A and B increases.
Ans 1: (Master Answer)
For the identical bulbs , the brightness of the bulbs depend upon the current flowing through them or the potential difference across them.
In the given circuit when the switch S is closed , due to parallel combination of bulbs B and C net resistance of the circuit decreases and hence the current through bulb A increases.While the current is divided between bulbs B and C .
Therefore the brightness of bulb A increases , B decreases and bulb C starts glowing.
Identify the incorrect statement from the following.
AMatter exists in different forms.
BMatter can be changed from one form to another.
CA new substance is formed in a chemical change.
DIce is heavier than water.
option D cannot be the answer as we have to identify the incorrect statement but D is correct
Refer to the given Venn diagram and select the correct option.
AP could be cold blooded animal whereas R could be warm blooded animal.
BP and R may possess endoskeleton of bones.
CP breathes through spiracles whereas R breathes through gills.
DQ could have hollow bones.