Q: What state of matter has a definite volume, but not a definite shape? Choices: - gas - solid - mixture - liquid A:
liquid

(Question)
Q: The spectrum is made up of discrete lines representing transitions of the hydrogen electron between specific energy levels within what? Choices: - a rainbow - an element - the molecule - the atom A:
(Answer)
the atom

Ques: Q: What takes the shape of the container they are placed in and have a definite volume? Choices: - gases - solids - loads - liquids A:
Ans: liquids

(Q).
Q: Organisms cannot live alone, needing other organisms to survive; what is this relationship called? Choices: - coexistence - independence - dominance - interdependence A:
(A).
interdependence

Ques:Q: If heat is released by the system into the surroundings, a chemical reaction or physical change is called what? Choices: - static - endothermic - biochemical - exothermic A:

Ans:exothermic

Ques: Q: What is the change of characteristics of living things over time? Choices: - spontaneous mutation - adaptation - generation - evolution A:
Ans:
evolution