Which of the following are observations? the candle floats. the tires are flat. the dog is barking. the tire is flat because of a decrease in temperature. if a person walks by, then the dog will bark.

The first three statements, that is, the candle floats, the tires are flat, and the dog is barking are observations.

Explanation:

Observation refers to the process or action of observing someone or something cautiously in order to attain a certain kind of information. Thus, the first three given statements are examples of observations, while the last two statements imply the concept of cause-effect relationships. The cause and effect refer to an association between the things or the incidents, where one is the outcome of the other or the others. This is an amalgamation of action and reaction.

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.