As you sit outside, the sound of a siren becomes lower in pitch. Is the emergency vehicle moving away from or towards you? Explain how you know.

Which is not one of the major climate zones? question 3 options: rain forest polar tropical temperate

It can take some of those large , industrial vehicles up to feet to stop when traveling only 60 mph, and therefore , you shoukd be mindful to not be jn the traffic right in front of them a. 100 feet b. 200 feet c. 335 feet d. 425 feet

Which of the following are not typically included in the periodic table? a. atomic mass b. element symbol c. isotopes d. number of electrons