Which of the following statements is incorrect?
A Precious metals like gold and platinum are used for making jewellery.
B Dentists use powdered pumice for polishing our teeth.
C Black gold is another name of granite.
D Shale is used to make tiles and bricks.
The given figure shows the skeleton of an adult human with some of its parts labelled. Identify the incorrectly labelled parts.
(a) Femur and Pelvis
(b) Radius and Ulna
(c) Tibia and Fibula
(d) Radius and Humerus
its correctly labelled
Read the given statements and select the correct option.
Statement 1: Groundwater is safe for drinking.
Statement 2: Groundwater is free from soluble impurities.
ABoth statements 1 and 2 are correct and statement 2 is the correct explanation of statement 1.
BBoth statements 1 and 2 are correct but statement 2 is not the correct explanation of statement 1.
CStatement 1 is correct but statement 2 is incorrect.
DBoth statements 1 and 2 are incorrect.
Groundwater is free from soluble impurities is wrong. Ground water is free from suspended impurities but it contains dissolved gases, minerals and salts. Hence answer is C.
While brushing, Rohit’s gums bleed. He is also feeling wobbly teeth, is tired most of the time and has pain in the joints.
Select the disease he is suffering from and its cause?
A Rickets, deficiency of vitamin D
B Anaemia, deficiency of vitamin A
C Scurvy, deficiency of vitamin C
D Beri beri, deficiency of vitamin B
Which of these holds true for the given situation?
1. It will be difficult for her to open her eyes for few minutes.
2. She will find difficulty in sensing hot and cold things.
3. She should move indoor.
4. She can feel air.
A 3 and 4 only
B 2 only
C 1, 3 and 4 only
D 1, 2 and 4 only
The solution description given is correct. However, the option that is marked as correct is 'D' but the correct option is 'C'.
Which of these birds uses its beak as a needle to sew leaves with materials like thread, straw and dry twigs?
B Weaver bird
C Tailor bird
D None of these
Read the given statements regarding first aid tips and select the incorrect statement(s).
(1) If a person is bleeding severely, tie loosely a bandage around the wound.
(2) If a person faints, do not crowd him.
(3) If a person gets burnt, put the burnt part under the cold water.
(4) In a case of cuts or small wounds, wipe them clean and apply antiseptic lotion over them.
(a) 1 and 3
(b) 1 only
(c) 1, 2 and 4
(d) 3 only