Question

sort the words according to the meanings of their shared roots.
eject
inject
preserving
reservation
reserve
project
protect
throw

Explanation:

• For "protect" group:
• "preserving" means keeping something in its original state, which is related to protection.
• "reservation" can imply setting aside (protecting in a sense) an area or right.
• "reserve" also has the meaning of keeping something for a particular purpose (related to safeguarding).
• For "throw" group:
• "inject" means to push (throw - like action) something (usually liquid) into something else.
• "eject" means to throw out forcefully.
• "project" can mean to throw (like a projectile) forward.

Answer:

• protect: preserving, reservation, reserve
• throw: inject, eject, project