\(\_\_\_\_\_\) is also called the terror of Bengal.
Water hyacinth Eichhornia crassipes is called the terror of Bengal due to its invasive nature and environmental impact on aquatic ecosystems.
The "terror of Bengal" refers to Eichhornia crassipes (water hyacinth) due to its invasive nature.
Therefore, options (B) and (C) are correct.
The correct answer is: Both (B) and (C).
The historic Convention on Biological Diversity, ‘The Earth Summit’ was held in Rio de Janeiro in the year
Given, the function \( f(x) = \frac{a^x + a^{-x}}{2} \) (\( a > 2 \)), then \( f(x+y) + f(x-y) \) is equal to