Question

4. In the following cases, state whother work ů done or
not. Justify your answer.
(i) Activity: One applics a force on a big work but fails to make
move it. lj Activity: A student reads a book by
Hii) Phenomenon: The revolution of the earth around the
sun.liv) Activity : A person person carries somo & goods
a handcart (v) Activity: A woorkor etin climbe a staircase
with some load on his head. (vi) Activity: A body slides on
a frictionless horizontal surface with a uniform velocity​

Answer 1

Answer:

nhijkkmklllkjjjjuuuia89qq99q202

Answer 2

Answer:

The ozone layer is a thin part of the Earth's atmosphere that absorbs almost all of the sun's harmful ultraviolet light. "Ozone holes" are popular names for areas of damage to the ozone