It shows the ray passing through the boundary.
When the switch is open then no current can flow, on the other hand, when it is closed, current will pass through. When only “bulb a” is connected to the battery then more current is flowing to “bulb a” causing it to be bright. So the light of “bulb a” will be dimmer.
They cause an increase in temp of earths atmosphere or warming by absorbing solar energy. hope this helps
Answer:
light and sound are both trasverse waves
Explanation:
