Practicing Success
Practicing Success
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| Assertion: The prickly pear cactus introduced into Australia in early 1920s caused havoc by spreading rapidly into millions of hectares of land range.
Reasoning:: When certain exotic species are introduced into a geographical area, they become invasive and start spreading fast because the invaded land does not have the natural predators. |
Both Assertion (A) and Reason(R) are correct and R is the correct explanation of A. Both Assertion (A) and Reason (R) are correct but R is not the correct explanation of A. Assertion (A) is true but Reason(R) is not correct. Both Assertion (A) and Reason are false (F ). |
| Both Assertion (A) and Reason(R) are correct and R is the correct explanation of A. |
| When certain exotic species are introduced into a geographical area, they become invasive and start spreading fast because the invaded land does not have its natural predators. The prickly pear cactus introduced into Australia in the early 1920’s caused havoc by spreading rapidly into millions of hectares of rangeland. Finally, the invasive cactus was brought under control only after a cactus-feeding predator (a moth) from its natural habitat was introduced into the country. |
