Overall, environmental science is the field of science that studies the interactions of the physical, chemical, and biological components of the environment and also the relationships and effects of these components with the organisms in the environment.
1 Add sliced onions to a medium bowl. 2  Pour enough boiling water over onions so that they are covered. 3  Count to 10 then drain. 4  Add onions to glass jars or a bowl. 5  Toast cinnamon, cloves and the red pepper flakes in a small saucepan over medium heat until fragrant, 3 to 5 minutes.
1 Peel and finely chop the onion. 2  Melt the butter in a 4-to-5-quart saucepan over medium heat, stirring regularly. 3  Add the onion and cook, continuing to stir, until it turns soft and translucent. 4  Turn the heat down if the onion starts to brown.