3. Write scientific reason : (any 3) 1. Carbondi-oxide known as best fire extinguisher_______ 2. The new individual inherits some characteristics from the mother and some from the father_______ 3. Uniform of fireman have coating of melamine plastic Plant cells need cell walls _________4.
Answers
Explanation:
1) The carbon dioxide considered the best fire extinguisher to put off fires caused by burning of inflammable liquids such as petrol or oil because carbon dioxide stops the influence of oxygen because it decreases the oxygen present in that fire which leads to the fallout of fire.
2) Sexual Reproduction
New individual inherits some characteristics from the mother and some from the father due to fusion of gametes. This type of reproduction is called as sexual reproduction.
3)Melamine is a chemical used in the manufacturing of plastic dishes, cups, and other tableware. It gives the dishes a harder, more durable feel than standard plastic. It's the abundance and variety of colors and patterns, durability, and affordability of these plastic dishes that make them an appealing option
Melamine is a poor conductor of heat and resists fire. Most of the synthetic fibres are poor conductors of heat and electricity. However, melamine is used as a coating on the uniforms of firemen as they are flame resistant. It is also used in airplanes, buses etc. to prevent the spread of fire.