What are the answers to the following questions about units of length, types of motion, and transportation?

Here are the solutions to the exercise questions:

A. Darken the circle for correct option in OMR Sheet:

1. d) Face
   • Explanation: Finger, hand, and foot were historical units of length, though not standardized. "Face" is not a unit of length.
2. c) $0.025 \text{ km}$
   • Explanation:
     • $2.5 \text{ m} = 2.5 \times 100 \text{ cm} = 250 \text{ cm}$
     • $2.5 \text{ m} = 2.5 \times 1000 \text{ mm} = 2500 \text{ mm}$
     • $2.5 \text{ m} = 2.5 \times 0.001 \text{ km} = 0.0025 \text{ km}$
     • $0.025 \text{ km} = 0.025 \times 1000 \text{ m} = 25 \text{ m}$, which is not equal to $2.5 \text{ m}$.
3. d) rectilinear motion
   • Explanation: Motion along a straight line is called rectilinear motion.
4. b) random
   • Explanation: A kite's movement in the sky is unpredictable and changes direction frequently, which is characteristic of random motion.
5. a) periodic
   • Explanation: Motion that repeats itself after a fixed interval of time is defined as periodic motion.

B. Fill in the blanks:

1. The early people used modes of transport to help them move from one place to another.
2. The invention of the wheel proved to be a revolution in our means of transportation.
3. One metre is equal to 1000 millimetre.
4. Rest and motion are relative terms.
5. When you push a box on the floor, it undergoes translatory motion.

C. Write 'T' for True and 'F' for False statements:

1. When you travel by a train or a car, the person sitting next to you is at rest with respect to you. T