Question

Q. Rewrite the following statements by changing the underline word to make them

scientifically correct.

​

Answer 1

★ Required Answers ★

Q. Rewrite the following statements by changing the underline word to make them scientifically correct.

a) The rotting dead matter in the soil is called fertilizer.

• The rotting dead matter in the soil is called organic manure.

$\boxed {\large \bf { Explanation:}}$Organic manures are made up of of dead and decaying matter of the plants and animals whereas fertilizers are inorganic salt made up of various chemicals in the factories/laboratories.

b) During inhalation, ribs move downwards.

• During exhalation, ribs move downwards.

$\boxed {\large \bf { Explanation:}}$To understand this we should always remember that when we inhale air, our ribs move outwards and upwards and the diaphragm moves down.

And when we exhale air, our ribs move inwards and downwards and the diaphragm moves upward.

c) Accumulation of alcohol, causes muscle cramps.

• Accumulation of lactic acid, causes muscle cramps.

$\boxed {\large \bf { Explanation:}}$ Anaerobic respiration takes place in humans, lactic acid is produced because of partial breakdown of the glucose due to anaerobic respiration in muscle and accumulation of lactic acid, causes muscle cramps.

d) Sandy soil has lowest percolation rate.

• Sandy soil has highest percolation rate.

$\boxed {\large \bf { Explanation:}}$ We know that, The percolation rate of water in the soil refers to the volume of water in millilitre that passes down the soil per minute.

Sand soil takes minimum time to percolate. This, is because they have very large spaces between them through which water can pass easily. Thus, rate of percolation of water is the highest the sandy soil.

_____________________________________

Answer 2

Answer:

• The rotting dead matter in the soil is called organic manure.

• During exhalation, ribs move downwards

• Accumulation of lactic acid, causes muscle cramps.

• Sandy soil has highest percolation rate.

HOPE IT HELPS U

PLEASE MARK ME AS BRAINLIST!!!

$\huge{ \boxed{\fcolorbox{black}{red}{нυмυ0807❥}}}$