Q: Q: Cancer is caused by mutations, which can be caused by pathogens, chemicals, or what else? Choices: - evaporation - convection - diseases - radiation A:
A: radiation

Q: Q: What disease is described as a respiratory disorder characterized by wheezing, coughing, and a feeling of constriction in the chest? Choices: - indigestion - dementia - inflammation - asthma A:
A: asthma

Q: Q: A polyatomic ion is an ion composed of more than one what? Choices: - pair bond - neutron - nucleus - atom A:
A: atom

Q: Q: What enthalpy change is observed in an exothermic reaction? Choices: - positive - no change - entropy - negative A:
A: negative