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[Solve] Which of the following statements describes erosion? Breakdown of rocks by wind water and ice Build-up of rocks into a pile Breakdown of

Which of the following statements describes erosion?
Breakdown of rocks by wind water and ice
Build-up of rocks into a pile
Breakdown of water by ice and wind
Movement of rocks by water, air, gravity, and ice

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[Solve] 18. Three small children are pulling a rag doll in different directions, each trying to get the doll from the

18. Three small children are pulling a rag doll in different directions, each trying to get the doll from the other two. The x-component of the force exerted by the first child is 5.0 N, and the y-component is 3.0 N. The second child’s force is -4.0 N in the x-direction and 2.0 N in the y-direction. The x- and y- directions of the third force are 1.0 N and -8.0 N. What are the components of the net force acting on the rag doll? What is the direction and magnitude of the net force? You may want to draw a free-body diagram to you solve the problem.
T-T

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[Solve] In a laboratory, a student combines vinegar and baking soda into a beaker. The initial temperature is 28 degrees Celsius

In a laboratory, a student combines vinegar and baking soda into a beaker. The initial temperature is 28 degrees Celsius and the final temperature reading two minutes later is 20 degrees Celsius.
1. What happened to the heat in the surroundings? 2. Did an endothermic or exothermic reaction occur?

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[Solve] Explain how a CO2 molecule that diffuses into the ocean in the North Atlantic ocean could eventually diffuse into the atmosphere

Explain how a CO2 molecule that diffuses into the ocean in the North Atlantic
ocean could eventually diffuse into the atmosphere off the eastern coast of
Africa hundreds of years later.

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