A. a classmate because then you can learn more about a fellow student which increases your friendship for gaining knowledge on one another
Answer: The story is about the different ways scientists use maths. Vakoch said they don't need extra terrestrial to speak English or German so they need to look into mathematics.
He said even in 1820, the astronomers used geometry. One scientist suggested in drawing triangles. Another suggested in making a circle and filling it with kerosene so when lit, it can be seen from space at night.
Then they used the binary system and some codes to send messages. Then they used pictures and started with simple counting.
Thank you sir.
Explanation:
you might be sick or even had worked late and the boss decides to give you a day off. Therefore It is nice to thank him
In this sentence detect means to uncover.
