Question

Direction (Q. No 5 and Q. No 6) In the following questions, the assertion and reason have been put forward.
Read the statements carefully and choose the correct alternative from the following.
(a) Both the assertion and the reason are correct the reason is the correct explanation of the assertion.
(b) The assertion and the reason are correct but the reason is not the correct explanation of the assertion.
(c) Assertion is true but the reason is false.
(d) The assertion is false but the reason is true.
5. Assertion: The standard unit for expressing the mass of an atom is 'u'.
Reason: 'u' is also called unified mass.
6. Assertion: Mosses prevent soil erosion.
Reason: Mosses from dense mats on the soil which prevent the impact of the falling rain.
-
1​

Answer 1

Explanation:

i hope this helps you

p

option a is correct

this answer is not correct

i can't give explanation

Answer 2

Answer to assertion and reasoning is -

5 - (b) The assertion and the reason are correct but the reason is not the correct explanation of the assertion.

6 - (a) Both the assertion and the reason are correct the reason is the correct explanation of the assertion.

•Unified atomic mass or unified mass or atomic mass unit is also known as Dalton. It is a unit to express the weight of atoms and molecules.

•It is defined as "1/12 of the mass of an unbound neutral atom of carbon-12 in its nuclear and electronic ground state and at rest."

•Mosses are the plants which can grow on rocky land with the characteristic of absorbing a large amount of moisture.

•They form a dense structure which effectively holds soil, preventing its erosion. This morphology is also helpful in reducing the evaporation of water.