metals (left side of periodic table) become positive ions so calcium would be the answer
The correct answer is B) Treaties expanding International Trade
After the second world war, the world has gradually opened up to one another for trade and opportunities.
We see that in the development of the World Trade Organization, as well as the NAFTA (North American Free Trade Agreement) between Canada, US, and Mexico and probably the most successful example in the European Economic Zone.
Prokaryotic cells do not have membrane bound organelles and eukaryotic cells do have membrane bound organelles
<h2>As carbon dioxide in the process of photosynthesis</h2>
