What is meant by biodiversity? Explain various means of in situ conservation of biodiversity. (UPSC 2022, 20 Marks, )

जैव विविधता से क्या अभिप्राय है? जैव विविधता के इन-सीटू संरक्षण के विभिन्न साधनों की व्याख्या करें। (What is meant by biodiversity? Explain various means of in situ conservation of biodiversity.)