Electromagnetic waves that radiate outward from a source at the speed of light a. electromagnetic radiation frequency. b. electromagnetic spectrum c. electromagnetic radiation wavelength d. brightness

B.  Electromagnetic radiation can be both helpful and harmful to humans.

Explanation:

The author of this passage states, “Radiation can be helpful for sending texts, but it’s not always a good thing.” Based on this, the author would most likely agree that electromagnetic radiation can be both helpful and harmful to humans. ad that's why, hoped I helped  (:

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.