Chemical compounds undergo both physical and chemical changes. which of the following is an example of a chemical change. a. salt (nacl) being dissolved into water b. heating a solid material to a liquid form c. cooling a gas into its liquid form d. combining oxygen gas and hydrogen gas to form liquid water

Prompt compare the three types of volcanic mountains in terms of shape, type of eruption, and the minerals that make up the volcano

Greenthe fossil record is the history of life recorded byhuman observationgod.climatologists.remains of the past.

Match the order of the levels of organization in nature with the correct description. example: atoms are fundamental units of matter= level 1levels- 2,3,4,5,6,7,8.now what levels are these? population consists of organismscells consist of moleculesecosystems consist of communities interacting with there environmentmolecules consist of atomsthe biosphere consist of all ecosystems on earthcommunities consists of populationorganisms consist of cells