Which is an example of an element? a)salt (nacl) b)water (h2o) c) silver (ag) d) electron (electron (e-)

Clouds form when water vapor to form small droplets. a. humidifies b. condenses c. evaporates d. precipitates

Si una estrella no tiene paralaje medible, ¿qué puedes inferir?

A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?