Question

3) Coal is a metal- 04)Silver is a non metal- 05) Frequency is measured in hertz(H true or false
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Answer 1

Answer:

3) False

4) True

5) True

Explanation:

Answer 2

Answer:

3)false

4)false

5)true

Explanation:

3) coal is a non metal it is a substance formed from decaying plants and animals it is mostly carbon with various amount of other elements

4)silver is relatively soft,shiny metal. of all the metals in the world, silver has highest level of electric conductivity and reflectivity

5)frequency is the rate at which current changes direction per second it is measured in hertz ( Hz)