Which of these features are found on land but NOT on the ocean floor? a: canyons
b: plains
c: lakes
d: mountains

Felicia has a respiratory infection and has been coughing up a lot of mucus. she knows this means that her respiratory system is working to restore balance by getting rid of the invasive materials from her lungs. how does this happen?

Rotation of the head is made in atlanto-occipital joint or not?

First to answer will be the brainliest i need the answer asap