An image that cannot be obtained on a screen is called a virtual image. For example, virtual image is always formed in case of plane mirror and... View Article
The process of seeping of water into the ground is called infiltration. The infiltration capacity is the maximum rate at which water can be... View Article
True Magnets are objects, which can attract, or pull, on some metals, like iron and steel. All magnets have north and south poles. Opposite... View Article
Oxygen gas in the atmosphere is essential for respiration. Respiration is defined as a metabolic process wherein, the living cells of an organism... View Article
False. Notebook and eraser do not have any lustre because they are not metals. Lustre is gentle shining light that is reflected from a surface,... View Article
No rainfall for a year or more may lead to drought in the region. A drought is a period of drier-than-normal conditions that results in... View Article
The process of changing water vapour into water is called condensation. Condensation is simply the process of change of the vapour from gaseous... View Article
The weaving of yam makes a piece of fabric - True Fibres are first converted into yarn by the process of spinning . In the process of spinning... View Article
A convex lens or converging lens focuses the light rays to a specific point whereas a concave lens or diverging lens diverges the light rays. A... View Article
Pure air Polluted air Pure air consists of a mixture of gases in proper proportion which is good for living beings. Polluted air comprises... View Article
False Natural magnets were discovered in Greece. Magnets always have two poles; the north pole and the South Pole. A cylindrical magnet also... View Article
The process of changing water into its vapour state is called evaporation. The evaporation of water takes place only in sunlight. Water vapour... View Article
Cotton is obtained from the fruit of the cotton plants. The cottonseed, which is a fruit which on ripening splits open to release white fibres of... View Article
Night blindness is caused due to deficiency of vitamin A in our food. Night blindness (in which it is difficult or impossible to see in... View Article
Clean and transparent water is not always fit for drinking. If water is clear it doesn't mean that it is perfect for drinking without bacteria.... View Article
Artificial magnets are made in different shapes such as bar magnets, horse-shoe magnetsandcylindrical magnets. Artificial magnets can be created... View Article
