Which feature do highland climates have that lower elevation areas do not?

High altitude areas have colder weather, unlike the low altitude areas that have warmer weather

Explanation:

Altitude is the vertical distance, which must be measured in meters, between a given location on Earth and sea level.

The altitude influences the climate, mainly through the atmospheric pressure. It is known that the air pressure is responsible for the increase in temperatures. So the higher the pressure, the warmer it gets; the lower the pressure, the colder.

The regions of the Earth that are closer to the sea level, that is, that have lower altitudes, suffer with a greater atmospheric pressure, becoming warmer. Those regions with higher altitude, on the other hand, suffer less with the atmospheric pressure, becoming colder.

In this way, it is possible to establish the following relation: the higher the altitude, the lower the temperature; the lower the altitude, the higher the temperature.

It should be noted, however, that it is not just the atmospheric pressure that provides the inverse relationship between altitude and temperature. Higher regions generally have higher incidences of winds and precipitation (in the form of rain or snow), which also contributes to falling temperatures.

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.