Answer:
2 levels of the independent variable and 0 levels of dependent variable
Explanation:
Levels of independent variable indicate the types of experiment here. Here we have the control experiment and experimental group. The control experiment/group is the group that is not altered and used to measure the experimental group. The control group is the 50 children that took nutritious breakfast while the experimental group is the 50 children that took doughnuts /non nutritious food. If there are more than two types of experiment, the number of experiment types are the number of levels of the independent variable. The dependent variable here has 0 levels
During the First crusades, Christian knights captured Jerusalem in 1099
This is an example of "Expanding".
The primary idea is to "Expand" the short phrases into full understandable sentences. For example when a child says' Me big boy", her mother can expand the sentence and understand that what the boy said, she can reply "Yes you are a big boy".