A team of engineers is asked to help a community improve local air quality What will the next step be after the team has identified the requirements and
limitations of a possible solution?
A. Brainstorming multiple solutions
B. Communicating the solution
c. Testing the prototype
D. Defining the problem

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.

Smallest intensity of a stimulus that you can detect 50 percent of the time is

A10-kg piece of aluminum sits at the bottom of a lake, right next to a 10-kg piece of lead, which is much denser than aluminum. which one has the greater buoyant force on it? explain. b - the aluminum a) both have the same buoyant force. b) the aluminum c) the lead d) it cannot be determined without knowing their volumes.