4/3 m/s ( approximately 1.3333... m/s)
Answer:
it's B. circuit a and b are series circuit while c is parallel
In the outer layers of earths atmosphere gases are in ionized state primarily on account of cosmic rays . as earth rotates , strong electric current are set up due to movement of ions . these currents form earth magnetic field . and thus two equal and opposite poles of earth formed
Observing is commenting on what you see e.g: It is raining.
Inferring is drawing conclusions from observations for example you see the road is wet so you might infer that it rained last night.
It's a change of motion, in simple terms.
