Answer:
a.)It will rise faster in cooler air
a.) heat
Explanation:
i
A hot air balloon rises faster if cold air were to surround it due to density differences between the air in the two medium.
- Hot air is less dense as the average kinetic energy of the molecules is greater.
- Cold air is denser.
- This density contrast causes the balloon to move up at a high pressure.
ii. Heat
The average kinetic energy of the molecules in a substance is termed heat.
Heat is a form of thermal energy measured by the kinetic energy possessed by molecules in a substance.
Answer:They conserve natural resources and help reduce the amount of trash and waste become more reusable.
Explanation:Hope this helps;) !!!
<span>The reason why the modern cockroaches have certain additional genes which allow them to survive in today’s colder climate is because of evolution. The species can grow to be able to live in certain environments. Cockroaches are to some degree summed up creepy crawlies without extraordinary adjustments like the sucking mouthparts of aphids and other genuine bugs; they have biting mouthparts and are likely among the most primitive of living neopteran bugs.</span>
Answer:
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The answer is A, global warming is the cause
