What are the two ways by which we can control vehicular air pollution ?

The diagram given below is an experimental set-up to study a very important physiological process. Study the same and answer the questions that follow :

(i) Name and define the process.

(ii) Name the part of a plant cell which is represented by and acts like the sugar solution and parchment paper.

(iii) Draw a "Control set-up" for the same experiment and label it.

Define Evolution

Name two abnormalities which are caused due to the hypersecretion of the growth hormone in humans.