What is the target heart rate range for a 21 year old? (Both low 0.5 and high 0.7)

Does indrect sunlight does not pose any danger to the skin

An example of maslow's need for safety is reaching goals through self-discipline

Disaster preparedness procedures should include assembling educational and entertainment materials for children. specifying how information will be shared with families. storing one gallon of water for each person. evacuating immediately if it is safe to do so.