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:
<em><u>Definitions of specialised. adjective. developed or designed for a special activity or function. synonyms: specialized specific. (sometimes followed by `to') applying to or characterized by or distinguishing something particular or special or unique.</u></em>
Explanation:
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The correct answer is immunoglobulins.
Immunoglobulins, also called as antibodies, refer to the molecules or glycoproteins generated by the white blood cells (plasma cells). They function as an essential component of the immune reaction by uniquely determining and combining with the specific antigens, like viruses or bacteria, and helps in destructing them.
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