yeet i do cause u seem like a really nice person :)
Answer: Nigeria and Liberia
Explanation:
A compact state is one where the distance from the center of the country is more or less the same to all the boundaries of the country.
Nigeria is a compact state with the center being in the capital of Abuja. Its compact nature allows for roads to be built easier. Liberia to the west of Africa is also a compact state with its shape being decided by European powers when they were scrambling for Africa in the Berlin Conference.
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Sorry taking educated guess but from my perception it's b but ??????
Answer:
a. each particle of matter vibrates about its normal rest position and along the axis of propagation,
b. Liquids
C. because liquids have the right amount of space between them for the wave to pass through quickly
Explanation: