‘Ex situ’ approach for conserving biodiversity:
- Ex situ conservation refers to the conservation of species outside their natural habitats. This method is used when in situ conservation is not possible. The main goal is to preserve species by maintaining them in controlled environments.
Examples:
1. Botanical gardens: These are places where plants are grown and conserved outside their natural habitat. They help protect endangered plant species and provide research opportunities.
2. Zoos and aquariums: These institutions house endangered animals in artificial environments and play a crucial role in breeding programs for species at risk of extinction.
অতিচর্বভোজের জন্য বিপন্ন একটি উদ্ভিদের উদাহরণ দাও।
রেডপান্ডা' পাওয়া যায়
`রেড ডাটা বুক' প্রকাশিত হয়
A racing track is built around an elliptical ground whose equation is given by \[ 9x^2 + 16y^2 = 144 \] The width of the track is \(3\) m as shown. Based on the given information answer the following: 
(i) Express \(y\) as a function of \(x\) from the given equation of ellipse.
(ii) Integrate the function obtained in (i) with respect to \(x\).
(iii)(a) Find the area of the region enclosed within the elliptical ground excluding the track using integration.
OR
(iii)(b) Write the coordinates of the points \(P\) and \(Q\) where the outer edge of the track cuts \(x\)-axis and \(y\)-axis in first quadrant and find the area of triangle formed by points \(P,O,Q\).