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a change in which the form of matter is changed, but one substance is not transformed into...
the breakdown of food into smaller pieces by chewing and peristalsis.
the natural and man-made features in the vicinity including the ground and air.
a model generated using objects or diagrams to understand and solve problems.
those properties that can change without changing the chemical nature of a substance.
the abiotic components relating to the physical nature of an area.
microscopic plants in the ocean that form the basis of the marine food web
single-celled floating algae, which provide food for marine animals, such as fish and whales....
when striking workers demonstrate in front of their place of work to prevent the business from...
a HEP scheme where the generation of power is less than 5 kW