Q1: Pick up the correct statement from the following :

ANS:E - All the above.

1. Nature plays an important role in the launch of a satellite: This is true because factors such as the Earth's rotation, gravity, atmospheric conditions, and other natural phenomena influence the launch and trajectory of a satellite.
2. The earth's gravity reduces the speed of a satellite by 32 km per second: This statement is incorrect. The acceleration due to gravity on the Earth's surface is approximately 9.8 m/s29.8m/s2, which is equivalent to about 9.8 m/s2×3.6 km/h per second≈35 km/h per second9.8m/s2×3.6km/h per second≈35km/h per second. However, this acceleration doesn't directly reduce the speed of a satellite in space.
3. The gravitational force relents as the satellite climbs higher: This is true. As a satellite moves away from the Earth's surface, the gravitational force between the satellite and the Earth weakens due to the inverse square law. However, the effect of gravity is not completely diminished but rather decreases with distance.
4. The gravitational intensity declines with height: This is essentially the same concept as the previous statement. Yes, the gravitational intensity (force per unit mass) declines as distance from the center of the Earth increases.