1. Rahul was a student of Class VII. His father purchased a new bicycle for him on his birthday. After few months, he found that
the cycle chain and even the handle gets rusted. His father advised him to apply a coating of paint to the cycle and not to keep it in the open in future. Now, answer the following questions:
(a)Why his cycle gets rusted?
(b)What do you mean by rusting of iron?
(c)What values are shown by Rahul’s father?
<h3> (a) Why his cycle gets rusted? </h3><h3>Answer :-</h3>
His cycle got rusted bcoz as his cycle was made of iron which came in contact with oxygen and got rusted.
<h3>(b) What do you mean by rusting of iron?</h3><h3>Answer :-</h3>
Rusting is the phenomenon of the deposition of a reddish-brown coating on the surface of iron by the action of moist air, and the reddish-brown coating is known as rust.
<h3>(c) What values are shown by Rahul’s father?</h3><h3>Answer :-</h3>
He knew that the cycle would surely get rusted in the presence of water and oxygen. This shows his knowledge of science.
When individuals migrate, alleles can be transferred from one population to another population which is known as gene flow. Gene flow is also called gene migration, the introduction of genetic material through interbreeding from one population of organisms to another which changes the composition of the gene pool of the migrated population of organisms. This gene flow creates a new species that is different from previous population of organisms
