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.
Blanching Onions Before Freezing. 1  1. Peel and chop the onions. Prepare the onions by trimming off the top and the bottom with a sharp knife. 2  2. Bring a pot of water to a boil. Fill a large stockpot with water, and place it on the stove. 3  3. Add the onions to the pot and boil for several minutes.