Answer: The radiation of the Sun's electromagnetic waves.
Explanation: The Earth's surface radiates energy back into the atmosphere. Then Gases in the atmosphere radiate heat back to the surface..:)
Answer: 15 Most Common Event Planning Challenges & Their Solutions. Understaffing an event is a common event problem. Overspending on the event is a big event challenge. Not prioritizing networking activities is an event challenge. Forgetting to track schedule or budget changes it an avoidable event problem
Explanation:
1 hour is 60 minutes. Half an hour is 30 minutes. Add them together and you'll get 90 minutes.
60+30=90
