Answer:
At different times
Explanation:
The echo returns at different times, but faster in water. This is because water particles are bound closer and this makes them transmit vibration energy from one particle to the next quickly. An echo is a sound wave and sound waves are longitudinal waves that occur by the collision of particles to move the vibrations along, and this is why they move slower in air.
The Monroe Doctrine<span>, was an attempt by president James </span>Monroe<span> in 1823 to prevent other European powers (outside of those already present) from establishing colonies or any new presence in the Western Hemisphere. It essentially stated that the United States would consider such attempts as an act of aggression.</span>
Men - physical aggression
Women- verbal aggression
