Question

pls answer this question help me pls i will mark you as a brainliest ​

Answer 1

Answer:

5)

i) The main organs of the nervous system are: The Brain & the Spinal cord (CNS) and the nerves (PNS).

ii) The diaphragm actually helps the lungs to breathe in and breathe out, In contracts while inhaling, creating a vacuum and helping us take in air, and vice-versa.

6)

i) A permanent magnet is one which does not need an electric field to be magnetised, whereas a temporary magnet stays magnetised in the presence of another magnetic field.

ii) Object that can attract other objects via magnetism, i.e., attraction and repulsion via a magnetic field are called magnetic materials, whereas objects which do not posses this quality are called non-magnetic.