A) harmful substance in the environment
B) clean air and water
C) recycling

A) a gentle breeze.
B) loud music and traffic
C) birds singing

A) to remove plague and prevent cavities
B) to have shiny teeth.
C) to look good

A) burn trash
B) drive more cars
C) ride a bicycle

A) it makes them happy.
B) it can cause stress and hearing loss
C) it help them sleep

A) after petting a dog
B) after using the bathroom
C) both a and b.

A) drinking water
B) throwing garbage into rivers
C) watering plants.

A) by covering your ears or using earplugs
B) by shouting louder.
C) by listening to loud music

A) not bathing regularly.
B) washing hands before mea
C) sharing a tooth brush

A) improved memory
B) difficulty concentrating
C) clean thinking