Which of the following is not a unit of measurement of distance?
Objects which emit light of their own are called ____.
A) luminous objects
B) non- luminous objects
C) opaque objects
D) transparent objects
Switches, electrical plugs and sockets are mainly made up of conducting materials.
The north pole of the earth's magnet is near the geographical ____.
The pod of cotton containing fibres and seeds is called a cotton ____.
The materials through which objects cannot be seen clearly are known as ____ materials.
The separation technique used to separate a solid-solid mixture is ____.
Which of the following is the best method of waste disposal?
A) Landfill method
B) Throwing waste in open pit
We should breathe through the nose and not by the mouth, because ____.
A) it is a bad habit
B) the air is moisturized when we breathe through mouth
C) the hair and mucus in our nostrils trap soot and dust particles present in the air
D) it is natural phenomenon
The presence of a thick and hard stem is a feature of ____.