Answer:
Explanation:
If sunspots are active, more solar flares will result creating an increase in geomagnetic storm activity for Earth. Therefore during sunspot maximums, the Earth will see an increase in the Northern and Southern Lights and a possible disruption in radio transmissions and power grids.
Protein and iron build strong and flexible bones. A diet that lacks these nutrients can lead to osteoporosis.
The muscular system is made up of over 600 muscles. These include three muscle types: smooth, skeletal, and cardiac. Only skeletal muscles are voluntary, meaning you can control them consciously.
The hepatitis one...I think. if you know for sure I an wrong then it's definitely the first one about HIV