Are the plants useful for us? If yes, how?
Yes, plants are extremely useful for us. Crop plants provide food like onions, wheat, and rice. Fruit plants give us fruits like mangoes and bananas for nutrition. Fodder plants like Napier grass feed livestock. Some plants have medicinal value and are used in traditional medicine like Ayurveda. Plants also provide oxygen, prevent soil erosion, and support biodiversity by providing habitat and food for insects, birds, and animals.
Explanation
The chapter explains that biodiversity registers provide useful information including local knowledge related to crop plants and animals, plants used for medicinal value, pests that affect plants, and when to plant crops. The example tables show uses of plants - onion is eaten raw or after cooking, mango is eaten raw or as pulp/juice, and even weed plants like Bermuda grass are used in playgrounds and sports fields.