Question

Statement 1: At sunrise or at sunset, the shadows on the ground become much longer than the sizes of the objects.
Statement 2:The size of the shadow becomes smaller when the object is brought near the light source or the screen is moved away from the object.

Answer 1

At sunrise or at sunset, the shadows on the ground become much longer than the sizes of the objects.
This is because during sunrise (sunset), the Sun rises from the horizon (sets on the horizon) and more sunlight is blocked by our body to form a longer shadow.
Moreover, the size of our shadow changes with the time of the day as we walk. At noon, the shadow will be smallest as the Sun is exactly over the head and a little light is blocked by our body to form a shadow.
Therefore, statement 1 is true.

The size of the shadow becomes larger when the object is brought near the light source or the screen is moved away from the object.

Therefore, statement 2 is false.