- absorbs and blocks some of the harmful UV rays
- keeps oxygen and other gassed inside the atmosphere
- helps maintain the planet’s temperature to support life
<h2>Answer:</h2>
Correct option is B.
B) A car's velocity decreased from 10m/s to 5m/s.
<h2>Explanation:</h2>
Velocity is the vector quantity i.e. It needed both direction and magnitude to define it. Velocity is actually the rate of change of subject with respect to some frame reference.
Acceleration is the rate of change of velocity with respect to its velocity. The standard unit of velocity of meter per second square.
Answer:
asking questions about the observation
Answer:
Gravity force = mass × gravitational field strength (g). The child’s weight is: 40 × 10 = 400 N. (g on Earth = 10 N/kg). The child's mass is 40 kg.
Explanation:
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