subject
Biology, 10.03.2021 01:00 jesser9

Which of these substances are always harmful to the respiratory system?
-asbestos
-pollen
-toxic chemicals
-tobacco smoke
-pollution

ansver
Answers: 1

Another question on Biology

question
Biology, 22.06.2019 00:00
Acar company is testing seatbelts using crash test dummies. the company finds that when cars come to a sudden stop, the crash test dummies' bodies continue to move forward. the seat belt keeps the crash test dummies from hitting the back of the seat in front of them. why do the crash test dummies' bodies continue to move forward even though the car stopped? a. the friction opposing their bodies' movement keeps them in motion. b. the inertia of their bodies keeps them in motion. c. the forward acceleration of the car keeps them in motion. d. the gravity pulling on the car keeps them in motion.
Answers: 1
question
Biology, 22.06.2019 04:00
Which law represents a balanced chemical equation?
Answers: 1
question
Biology, 22.06.2019 13:00
What is the starting point in replication called
Answers: 1
question
Biology, 22.06.2019 19:30
When mitochondrial dna from living relatives was compared with mitochondrial dna from the skeletons, scientisits determined that skeletons 3,4,5,6 and 7 were members of the romanov family. which of these skeletons can be identified by name based on the evidence you have? explain your answer.
Answers: 2
You know the right answer?
Which of these substances are always harmful to the respiratory system?
-asbestos
-pol...
Questions
question
Mathematics, 26.11.2019 19:31
question
Mathematics, 26.11.2019 19:31
question
Mathematics, 26.11.2019 19:31
question
History, 26.11.2019 19:31
Questions on the website: 13722362