Which statement defines an ore? Rock broken down to become part of the topsoil. Rock dug out from the earth to use in construction. Rock dug out from the deep inside earth and refined. Rock exposed as a result of loss of topsoil.

A current of4 ampere flows in a wire of resistivity 60 ohm calculate power dissipated in the wire

Which nuclear energy produces household electricity, fusion or fission?

Which terrestrial planet experiences the least daily change in temperature? a. mercury b. earth c. mars d. venus

Which value is defined as the difference between the potential energy of the products and the potential energy of the reactants during a chemical change?

Find the total displacement of a mouse that travels 1.0m north and then 0.8m south.

What is the tense In sailed

Acceleration is a vector quantity. O O A. True B. False

What will happen to the brightness of a string of bulbs hooked up in series when you increase the number of bulbs in the string? A. Each light in the string will get brighter. B. Each light in the string will get dimmer. C.

What are the two factors that influence the composition of beach material

Which of the following indicates that a ChemicL change has taken place? (A) a change from liquid to a gas (B) an increase in the volume of a substance (C) a change in the color of a substance (D) a change from a solid to a liquid A precipitate is a