Answer:
If your birthday was celebrated already then you would be 23, but if your birthday isn't celebrated then you would be 22
Explanation:
As they evolved and adapted, those of the fittest survived to reproduce. Those that did not adapt, died.
The chromosphere is the middle layer
Answer: option 4: A wire that is 2-mm thick and coiled.
Explanation:
The current in each wire is same. The magnetic field due to a current carrying wire increases if the wire is coiled with the more number of turns. A thick wire would cause low resistance to the current. Hence, a 2-mm thick wire which is coiled would produce the strongest magnetic field.
