Climatologists look for climate change in many components of the climate system. Which of the following statements has the least direct evidence? A. Global mean surface temperature has increased since 1850.
B. Arctic sea ice, glaciers, and ice sheets have decreased in size over the past 50 years.
C. The length of the growing season in the US has decreased since the 1890s.
D. Global mean sea level has risen significantly since 1880.

Explanation:

Thermal energy is defined as the kinetic energy present within the particles of a substance.

A process in which energy is absorbed by the molecules of a substance is known as endothermic process. On the other hand, a process in which energy is released by the molecules of a substance is known as exothermic process.

Condensation : A process in which vapors change into liquid as bonds are formed and energy is released.

Freezing : A process in which liquid changes into solid as bonds are formed and energy is released.

Deposition : A process in which particles of a substance come closer to each other resulting in bond formation and release of energy.

Sublimation : A process in which solid state directly changes into gaseous state without undergoing liquid state is known as sublimation. In this process, bonds break and energy is absorbed by the solid particles.

Evaporation : A process in which liquid changes into gas as energy is absorbed leading to breakage bond.

Melting : A process in which solid changes into liquid as energy is absorbed leading to breakage bond.

Thus, we can conclude that given processes are sorted as follows.