Which one of the following does not affect the rate of transpiration ?

1. Light
2. Humidity
3. Wind
4. Age of the plant

Identify the ODD term in each set and name the CATEGORY to which the remaining three belong :

     Example: Glucose, starch, cellulose, calcium
     Odd term: Calcium.
     Category: Others are different types of carbohydrates

(i) Addison's disease, Cushing's Syndrome, Acromegaly, Leukemia.

(ii) Insulin, Adrenaline, Pepsin, Thyroxine.

(iii) Axon, Dendron, Photon, Cyton.

(iv) Chicken pox, Colour blindness, Haemophilia, Albinism.

(v) Polythene bag, Crop residue, Animal waste, Decaying vegetable.

Study the picture given below and answer the following questions:

(i) Identify the type of pollution.

(ii) Name one pollutant that causes the above pollution.

(iii) Mention the impact of this pollution on human health.

(iv) State one measure to control this pollution.

(v) What is a 'Pollutant'? Explain the term.

Given below is an experimental setup to demonstrate a particular tropic movement in germinating seeds. Study the diagram and answer the questions that follow :

(i) Label the parts 1 and 2.

(ii) Name the tropic movement shown by part 1.

(iii) Part 1 is affected by two stimuli. Name them. Which one of the two is stronger?

(iv) What is Thigmotropism ? Give one example.

(v) What is meant by 'Positive' and 'Negative' tropic movements in plants?