Answer:
Traffic from all four directions must stop.
Explanation:
- The four-way stop sign is also called as all stop sign in traffic management consists of stopping of all the vehicles for all the four directions at the same time of the intersection before crossing it .And was designed to have a low traffic volume and is commonly found in America, Africa and Canada.
At the bottom of the food chain, green phytoplankton is eaten by krill and shrimp. The krill and shrimp are later eaten by squid, whales, and fish. Later, seals, penguins and birds eat the squid. Finally, killer whales/orca eat squid as well.
Hope this helps!
Hope this helps you!