Question

Va roggg !! E urgent ! Dau coroana !!

Answer 1

1)do not extract;breathe in 
2)hold
3)don't sleep
4)are using 

Answer 2

1)Wales don’t extract oxygen from the water they come to the surface of the water and breathe air
2)Whales can hold their breath between 5 minutes and one hour under the surface of the sea
3) whales don’t sleep completely they only rest half asleep close to the water surface
4) when resting whales are using half of the energy they use when they are active