Read the given paragraph with few blanks and select the option that correctly fills these blanks.
Plants reproduce vegetatively by different means. Plants like ______ reproduce with the help of leaves,______ and ______ reproduce by stem and ______ reproduces by roots. Some plants like mushrooms reproduce by ______.
ABryophyllum, potato, turnip, ginger, spores
BBegonia, onion, rose, sweet potato, seeds
CBryophyllum, rose, potato, turnip, spores
DBegonia, potato, onion, sugarcane, seeds
When light falls on a surface, light bounces off the surface. This is called reflection. When light falls on a smooth surface, the surface reflects the light in a well defined manner. The best example is plane mirror.
Why rose appears red in colour to our eyes?
AIt absorbs the red colour and reflects rest of the colours.
BIt absorbs the red colour and refracts rest of the colours.
CIt refracts the red colour and absorbs rest of the colours.
DIt reflects the red colour and absorbs rest of the colours.
Count the number of straight lines in the given figure.
it can be 23 if bottom line near tyre is taken as 3 lines.
Pick the odd one out from each group given below and select the correct option.
(i) Haematite, Bituminous, Bauxite, Pyrite
(ii) Malaria, Dengue, Sleeping sickness, Typhoid
(iii) Pliers, Scissors, Nutcracker, Crowbar
People living on plains when go to high mountain regions, experiences breathless and nauseated. This happens because mountains at a high altitude has low level of oxygen in the atmosphere. Therefore, they have to breathe faster. After some days, they temporarily change to adjust to the new changed conditions.
Read the given passage and answer the following questions.
a. What name is given to such feature of organism to temporarily change to overcome changed conditions?
b. Select an another example of such feature.
(A) a - Adaptation b - Thick layer of fur in polar bear
(B) a - Acclimatization b - Change in skin colour due to climate
(C) a - Acclimatization b - Bending of plants towards sunlight
(D) a - Adaptation b - Streamlined body of birds
Match column I with column II and choose the correct option from the codes given below.
|Column I||Column II|
|P. Nylon||(i) Burns quickly with a smell of burning paper|
|Q. Wool||(ii) Burns with sooty flame, fabric shrinks and black beads are formed|
|R. Acrylic||(iii) Shrinks after exposure to flame, forms hard beads and gives a smell of burning hair|
|S. Rayon||(iv) Burns slowly with a smell of burning hair|
A P - (i), Q - (iv), R - (ii), S - (iii)
B P - (iii), Q - (iv), R - (ii), S - (i)
C P - (iv), Q - (iii), R - (i), S - (ii)
D P - (ii), Q - (iv), R - (iii), S - (i)
Select the pair of forces that always work in opposite direction.
AFrictional force, magnetic force
BGravitational force, frictional force
CGravitational force, magnetic force
DNone of these
Four groups of everyday objects were made by Shashank. Out of these only one group has the same type of machines. Identify this group and select the correct option.
A Lift, escalator, crane
B Nutcracker, wheelbarrow, screwdriver
C Door knob, handle of an eggbeater, see saw
D Axe, lift, door knob