Why do scientists build models.
a. to make generalizations about natural
b. the observed behavior may represent the universe as a whole
c. the universe is big and complex so it may be to create a smaller physical system to study
d. all of the above

(01.02 mc) nicole pushes her bike up a hill. overhead, the sun exerts a gravitational force on earth. which statement is true about the bike and earth? they both experience contact forces. they both experience non-contact forces. the bike experiences a non-contact force and earth experiences a contact force. the bike experiences a contact force and earth experiences a non-contact force. they both experience non-contact forces.

Explain what will happen if decomposers were apsent from a forest ecoysystem.

Global climatic patterns are changing because of the melting of polar ice caps. the melting of polar ice caps is an example of the interaction between the atmosphere and cryosphere cryosphere and geosphere hydrosphere and geosphere biosphere and cryosphere