Which term refers to all areas of earth where life exists

Which property is best to use when determining the strength of an ionic bond in a solid lattice energy conductivity hardness solubility

What evidence for the age of the earth is indicated by the fact that sedimentary rock is found on mountain tops? that the earth has expanded outward from water beds that mountains formed first before anything else that some force lifted the rocks from the water the earth is not very old and has not had time for many rock layers to form

Restriction enzymes are used in making recombinant dna. describe the role restriction enzymes preform when constulting recombinant dna.