25) Write any two functions of human skeleton.
26) What is unil? Write the units used to measure temperature.
27) Riya throws a ball from the roof of his house. What kind of energy does the
Give the name of force acting on the ball.
28) What is a solar eclipse? Draw its diagram.
29) What is a tsunami? What happens in a tsunami?
SECTION-
30)i) Explain any four parts of human eye.
ii) Name the force which helps us to walk.
31) i) Why is life possible on earth
ii) What are aftershocks!
Answers
25. gives a fixed structure to the human body
26. i) A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity. Any other quantity of that kind can be expressed as a multiple of the unit of measurement. For example, a length is a physical quantity.
ii) °C , °F
27. muscular energy
28.when sun is on the opposite side of the moon is called solar aclipse
29.A sudden wave of water is called tsunami
30. i) •Cornea: This is the front layer of your eye. ...
•Pupil: The pupil is the black dot in the center of your eye that acts as a gateway for light. ...
•Iris: This part is typically referred to as your eye color. ...
•Lens: The lens is behind the iris and pupil.
ii) Gravitational force
31. i). Due to the oxygen and trees present on the earth it is possible to live in earth
ii) a smaller earthquake following the main shock of a large earthquake.