Answer:
The North European Plain.
Explanation:
A physical region that is known for being the most productive agricultural lands in Europe is the North European Plain which exists mostly in Denmark, Poland, Belgium, Germany, the Netherlands, with little parts of northern France and the Czech republic. As the main use of the Northern European Plain is commercial farming, with few natural vegetation remaining, while the region also covers heath, bogs, and lakes.
They are brought from colder regions e.g. the North and South poles where ice caps are melting to give cold water. Currents are due to the effect of wind on the water.
Explanation: climatology is not a branch of human geography.
The correct answer Having a shoreline makes shipment by sea possible, which is less expensive than over land
North African and Middle Eastern countries can't join the EU since they're not from Europe, and regarding security, it's all the same now since it's not the middle ages any more.
The wind from the ocean keeps it cooler in summers. This is just a guess, but I think the sun reflecting on the ocean helps keep it warmer in the winter.