2. How do paragraphs 18-20 contribute to the development of the theme? A. They illustrate that the people do not know what will result from their actions.
B. They demonstrate how dangerous the hole is to human life and why it must be filled.
C. They give an example of how changes in the environment can positively affect human beings.
D. They show how people that live in close contact with nature are better able to understand natural changes.

If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the refrigerator if it released 380j of energy to the room?

If steel is more dense that lake water, why can a boat float

Give your knowledge of these things in your paper, you will compare and contrast analog and digital signals to determine which is more reliable for encoding and transmitting information. you’ll compare these features: signal shape numerical values for signal measurements amount of data that can be transmitted energy requirements privacy and security (ability of the signal to be encoded in a secret code) clarity of signal in the space provided, write down what you already know about any of these features. if you’re not sure, write down questions you might have about the features.