Sustainable development ensures that resources are used responsibly to meet current needs without compromising the needs of future generations.
Option (d), increasing pollution, is the opposite of sustainability and harms both the environment and mankind.
| Class | 0 – 15 | 15 – 30 | 30 – 45 | 45 – 60 | 60 – 75 | 75 – 90 |
|---|---|---|---|---|---|---|
| Frequency | 11 | 8 | 15 | 7 | 10 | 9 |
Leaves of the sensitive plant move very quickly in response to ‘touch’. How is this stimulus of touch communicated and explain how the movement takes place?