Science Class 6th
81. __________ ear helps in maintaining balance of the body.
A. Outer ear
B. Middle ear
C. Inner ear
D. All of these
82. The largest sense organ is?
A. Skin
B. Ear
C. Eye
D. None of these
83. Skin is made up of ________ layers.
A. 1
B. 2
C. 3
D. 4
84. ________ is the outer hard layer of skin.
A. Dermis
B. Epidermis
C. Both (a) and (b)
D. None of these
85. Sweat and oil glands are present in ________ layer of skin.
A. Dermis
B. Epidermis
C. Skin
D. None of these
86. Nerve endings and sensory cells called receptors are present in _________.
A. Dermis
B. Epidermis
C. None of these
87. Which sensory organ helps in making Vitamin D?
A. Eye
B. Skin
C. Ear
D. Tongue
88. About ________ touch receptors are present in your finger tip.
A. 200
B. 300
C. 400
D. 100
89. Passage way of air into lungs is __________.
A.Mouth
B. Skin
C. Nose
D. None of these
90. Receptors are located in upper part of________.
A. Nostrils
B. Throat
C. Lungs
D. None of these
91. Air becomes warm, clean and moisten in________ layer of nostrils.91.
A. Inner
B. Middle
C. Upper
D. None of these
92. At best, our nose can differentiate between _________ smells.
A. 3000-4000
B. 4000-10000
C. 5000-50000
D. None of these
93. As we grow older, sense of smell gets?
A. Strong
B. Weak
C. Neither strong nor weak
94. Tongue has taste receptors called
A. Taste buds
B. Buds
C. Testers
D. Receptors
95. The weakest sense of the five senses is?
A. Sight
B. Smell
C. Taste
D. Hearing
96. We have almost _________ taste buds.
A. 500
B. 50000
C. 800
D. 10000
97. ________ cells are present in sense organs.
A. Receptor
B. Sense
C. Sensitive
D. None of these
98. Salty and Sour tastes are received by _______ of our tongue.
A. Middle
B. Sides
C. Tip
99. Optic nerves take signals to the ________.
A. Brain
B. Nose
C. Eyes
D. Mouth
100. Hearing is helped by?
A.Optic nerves
B. Sensory nerves
C. Auditory nerves
D. Motor nerves