ICSE Class 10 Biology
Question 2 of 10
Population — The Increasing Numbers and Rising Problems — Question 2
Back to all questions(a) Difference between exhaustible and inexhaustible resources —
| Exhaustible resources | Inexhaustible resources |
|---|---|
| Resources which cannot be renewed readily by natural means and are available in finite quantities in nature which can be easily consumed are called exhaustible resources. | Resources which are abundantly available in nature and can be used for unlimited time and cannot be exhausted by humans are called inexhaustible resources. |
| Examples: Coal, petroleum. | Examples: Wind, sun |
(b) Difference between conventional and non-conventional sources of energy —
| Conventional sources of energy | Non-conventional sources of energy |
|---|---|
| Conventional sources of energy are the natural energy resources which are present in a limited quantity and are being used for a long time. | Non-conventional sources of energy are the energy sources which cannot be exhausted easily and are continuously replenished by natural processes. |
| Examples: Coal, petroleum. | Examples: Solar energy, wind energy. |
(c) Difference between natality and mortality:
| Natality | Mortality |
|---|---|
| The total number of live births per 1000 people of population per year is called birth rate or natality. | The total number of deaths per 1000 people of population per year is called death rate or mortality. |
(d) Difference between tubectomy and vasectomy —
| Tubectomy | Vasectomy |
|---|---|
| It is the process which involves cutting or ligating of fallopian tubes by nylon thread to close the passage of egg. | It is the process in which vas deferens from each testes is ligated and a small piece between the two ligatures is removed. |
| It is contraceptive practice in females. | It is contraceptive practice in males. |
(e) Difference between deforestation and afforestation —
| Deforestation | Afforestation |
|---|---|
| It is the destruction of trees and forests for human habitation and use. | It is the planting of trees in a previously barren environment. |
| It has a detrimental effect on the environment. | It has a beneficial effect on the environment. |