The evaluation of training activities helps to establish a worth include value, merit or excellence of something and target towards re-building endurance.
When we say independent variable, this is the variable in an experiment that is being controlled in order to come up with an answer of a certain problem. In the given scenario above, the independent variable is the sugar consumption. This is the variable that is being controlled in order to know the effects (dependent variable). Hope this helps.
A greenhouse works in a convection way, since sunlight is energy that flows through the greenhouse windows, it then hits a solid surface and turns into heat. Think of it like an convectional oven, the light of the 1100 watt light bulbs used in an electronic oven hits and bounces off the oven walls(which are a solid surface) and turns into heat in order to cook your food.
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