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

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

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

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

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

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

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

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

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

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