Question

9) маань доо ироаи те ате от апетитри
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ULU 1
Answer the following questions: -
(215=10)
Q1. Why do you think that classification of materials into groups is necessary? (any two points
Q2. During construction of building, a worker found the sand required to be used is mixed with
small pebbles and other undesirable substances. What method should he use to remove the
pebbles and other particles from sand? Why?
Q3. When do you say an object is in the state of motion? How does the circular motion differ
from the rotational motion?
Q4. What are the precautions you shoulu eep in mind while taking readings using meter scale?
(Any two points)
Q5. How are shadows formed? Unse uniune difference between image formed by a plane mirror
and image formed by a pin hole camera?​

Answer 1

Explanation:

Write your question properly

Write your question properly It is not able understand

Answer 2

Answer:

2)seawing

Explanation:

lt is used to separate substances which are of different sizes