Answer:
the ratio of the angle subtended at the eye by the image formed by an optical instrument to that subtended at the eye by object when not viewed through the instrument.
Answer: Most likely C
Explanation: We are currently using robots in outer space
Answer:
B. The speed of sound in stone is slower than in wool.
Explanation:
A. All materials can transmit sound. True
Solids, liquids and gases can transmit sound even though the degree of transmission varies.
C. Sounds cannot move in vacuum. True
Sound cannot transmit in space. You can prove it using the "bell jar" experiment.
D. Sound loses its energy as it travels. True
Answer:
For your kind information, read the question thoroughly!
The bottom is the container part and not the liquid.
I hope it will be useful.