which of the following statements is false?

a. air temperature over the ocean remain fairly constant throughout a 24-hour cycle
b. air temperature over the land can vary significantly throughout the day
c. air temperatures over land reach their highest values in the mid-afternoon
d. air temperature over land are always higher than air temperature over the ocean

d. air temperature over land are always higher than air temperature over the ocean

The false statement among the options is:

d. Air temperatures over land are always higher than air temperatures over the ocean.