3. Mark_/ on unit of time in the following supporting your selection with reason:a. Sunriseb. From one sunrise to another sunrisec. Sunsetd. From one midnight to another midnighte. Dawnf. Duskg. From one full moon night to anotherfull moon night.4. Write the formula used for calculatingspeed.

3. Mark_/ on unit of time in the following supporting your selection

1.	3. Mark_/ on unit of time in the following supporting your selection with reason:a. Sunriseb. From one sunrise to another sunrisec. Sunsetd. From one midnight to another midnighte. Dawnf. Duskg. From one full moon night to anotherfull moon night.4. Write the formula used for calculatingspeed.
Answer» 4 . The formula for speed is speed = distance ÷ time. To work out what the units are for speed, you NEED to KNOW the units for distance and time. In this example, distance is in METRES (m) and time is in seconds (s), so the units will be in metres per second (m/s).