Name some diseases caused by different untreated compounds or metals of industrial factories.

Complete the following food chains:

1. Nectar of flower$\to$----- $\to$----- $\to$-----.
2. Leaf $\to$----- $\to$-----.
3. Larva of mosquito $\to$Fish $\to$-----.
4. Twig $\to$-----.
5. Grain $\to$----- $\to$-----.
6. Fish $\to$----- $\to$-----.

Complete the following food chains from the above pictures.

$$\begin{gathered} \mathrm{Nectar} \mathrm{of} \mathrm{flower} \to \mathrm{\_\_\_\_\_}\to \mathrm{\_\_\_\_\_}\to \mathrm{\_\_\_\_\_} \\ \mathrm{Leaf} \to \mathrm{\_\_\_\_\_}\to \mathrm{\_\_\_\_\_} \\ \mathrm{Larva} \mathrm{of} \mathrm{Mosquito} \to \mathrm{Fish}\to \mathrm{\_\_\_\_\_} \\ \mathrm{Twig}\to \mathrm{\_\_\_\_\_} \\ \mathrm{Grain}\to \mathrm{\_\_\_\_\_}\to \mathrm{\_\_\_\_\_} \\ \mathrm{Fish}\to \mathrm{\_\_\_\_\_}\to \mathrm{\_\_\_\_\_} \end{gathered}$$

Complete the table: