Pls helpp The local scout troop headed out for a weekend camp out. The campers met at point
A and hiked up to point B to set up a camp site. What was the change in elevation
for these campers?

100 m
110 m
120 m
200 m

Which element provides strength to the exoskeleton of clams and oysters

Me with these questions image attached

The picture represents a structure of the respiratory system. which is the function of this structure? to bring air into the body to exchange oxygen with carbon dioxide to carry air to the lungs to release oxygen from the body