Answer:
The European Union (EU) is a political and economic union of 27 member states that are located primarily in Europe.
Explanation:
The answer is B, the ancient Egyptians
European Countries can retain their cultural identities by excelling and polishing what they are good at.
<u>Explanation:</u>
European Countries can retain their cultural identities by excelling and polishing what they are good at. This can be proven by certain examples;
<u>Example 1:</u>
Volkswagen, a German Car manufacturer that is known to make durable cars. Due to its becoming famous during World War II, it has found its success by exporting to other countries and providing cars that were up to the mark and were made using state of the art materials.
<u>Example 2: </u>
Switzerland is known for its cheese. It’s so famous that it’s known all over the world by the name of Swiss Cheese. Swiss cheese has become so famous that it has become an integral part of all types of cuisines all over the world.
<span>In terms of matter and resources, the Earth is essentially a closed system, because matter and resources are fixed.
</span>In terms of energy, the Earth is an open system, because there is a balanced transfer of energy. (The energy<span> radiates into the </span>Earth's system<span>, from the Sun and</span><span> then it is radiated back into space from the </span>Earth. The<span> flows of energy are regulated by the </span>Earth's<span> atmosphere and ozone layer.)</span>
Answer: The nitrogen cycle refers to the cycle of nitrogen atoms through the living and non-living systems of Earth. The nitrogen cycle is vital for life on Earth. Through the cycle, atmospheric nitrogen is converted to a form which plants can incorporate into new proteins.
