[100 points]
1. explain why water is the universal solvent. complete sentence, and use the word solubility or dissolve.

2. what is a polar molecule? explain. use the words positive, negative, and charge.

3. which end of water molecule is negative? which end is positive?

7th grade question (easy) look at the diagram of the food web. the arrows mean eaten by. what would happen if the number of snakes went down? answer choices are in the image.

Toorale man murder mystery < - your lab link 1. how was the toorale man found? 2. what did archaeologists learn about the burial? why is the burial important? 3. what information were the scientists able to learn from the skeleton itself? 4. why is the question of whether the injuries came from a stone or steel weapon important? how could scientists distinguish between the different types of weapons? 5. what did the carbon dating and soil testing tell scientists about toorale man? why are the dates interesting for scientists?

Many birth-control pills release a constant amount of synthetic estradiols and progesterone for 21 days. true or false