Answer: I think the answer is 1
i just learned this about two weeks ago
Explanation:
Geography is viewed as a science on the grounds that it utilizes the investigative strategy and maintains experimental standards and rationale. Developments, for example, the compass, geographic data frameworks, worldwide situating frameworks and remote detecting would not have been conceivable without "Geography."
it will float because it is not heavy enough
Answer:
all these are physical properties except release of heat so it's probably heat energy given off
