Answer:
40km/hr
Explanation:
Speed = Distance ÷ Time and since they both have different units we have to change one of them. Therefore if we change 30 minutes to half an hour we say 20km ÷ ¹/2
The force that accelerates objects towards Earth is gravity.
Answer:
urban heat island
Explanation:
occurs when a city experiences much warmer temperatures than nearby rural areas.
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