LCL is the height where air has cooled to the dew point. We can calculate LCL using temperature and dew point at the surface. Like temperature dew point also decreases with height because of decreasing pressure. Ew point drops at the "de Point Lapse Rate (DPLR) of 0.2 degrees C/100m (1.0 degrees C/500m)

Question

LCL is the height where air has cooled to the dew point.  We can calculate LCL using temperature and dew point at the surface.  Like temperature dew point also decreases with height because of decreasing pressure.  Ew point drops at the "de Point Lapse Rate (DPLR) of 0.2 degrees C/100m (1.0 degrees C/500m)
What is the Air Temperature and Dew Point at the following heights?  2000m, 1500 m, 1000 m, and 500 m if at the surface (sea Level) it is 26 degree C air temperature and 10 degrees C dew point?