O ar-condicionado reduz a umidade do ar e causa ressecamento das narinas. Como isso aumenta as chances de entrar em contato com micro-organismos causadores de doenças?

Janel’s class studied properties of matter and how matter can change. janel decided she would do an experiment mixing baking soda and vinegar.question: describe the properties of baking soda and vinegar, and explain the changes that janel should see when she mixes the two types of matter. •first, identify the physical state of matter of baking soda. describe another property of baking soda. •next, identify the physical state of matter of vinegar. describe another property of vinegar. •then, explain what janel should see when she mixes the baking soda and vinegar. •describe the states of matter of the new materials that are formed. •explain how janel can be certain a change has occurred. me

An empty fuel tank can still contain and therefore can be even more dangerous than one full of liquid fuel.

Which fact represents evidence for the big bang theory?