Question

C] True or false
1) Bauxite is most important are of aluminum
2) Red light is scattered less than blue
3) As the tension in stretched wire is decreased the pitch of sound increases
4) Magnetic lines of force are in visible​

Answer 1

Answer:

1)True.

2)True.

3)False.

4)False

Answer 2

Answer:

1) False.

2) True.

3) True.

4) False.

Explanation:

Reasons:-

1) Bauxite is most common ore of aluminum.

2) Red light is scattered less than blue.

3) As the tension in stretched wire is decreased the pitch of sound increases.

4) Magnetic fields are not visible because it was not important during evolution to acquire that capability. That makes sense when you look where to find magnetic fields in nature. There is the field of Earth, that can be used for navigation.