How can we help wood surfaces resist weathering, especially when restoring historic wooden buildings?

Complete Question

Protecting wood. How can we help wood surfaces resist weathering, especially when restoring

historic wooden buildings? In a study of this question, researchers prepared wooden panels and

then exposed them to the weather. For each of the following variables that were collected in

(a)-(c), identify:

i. the variable type (continuous, discrete, ordinal or nominal). Ensure that you

justify your response; AND

ii. the most appropriate graph to display the distribution (just mention the name of

the graph).

(a) Paint thickness (millimeters).

(b) Weathering season (spring, summer, autumn, winter).

(c) Type of wood (yellow poplar, pine, cedar).

Variable :   a Paint thickness (millimeters).

                b  Weathering season (spring, summer, autumn, winter).

                 c Type of wood (yellow poplar, pine, cedar).

i. the variable type (continuous, discrete, ordinal or nominal). Ensure that you  justify your response;

               a  Continuous, because Paint thickness (millimetres). is a numerical   data, which can take any value in a given interval

               b  nominal, because the variable takes only 4 names: spring, summer, autumn, winter.

               c  nominal, because the variable takes only 4 names:yellow poplar                

ii. the most appropriate graph to display the distribution (just mention the name of  the graph).    

               a     Histogram

               b      Pie Chart and Bar Chart

                c     Pie Chart and Bar Chart

Explanation:

since there isn't any suggested answers i will give you the reason and hopefully you can figure it

south africa, or rather all of africa, has not been in the location in which it is nowadays throughout the geological past. after the super-continent pangaea started to break apart, gondwanaland, in which was africa, moved further south, and parts of it came to be very close to the south pole. because the climate in this part of the world is very cold due to the very dispersed sun rays in there, what is now south africa, started to freeze, and the conditions were right for the formation of glaciers. the glaciers existed up until the period when gondwanaland started to break apart and what is now africa started to move towards north, sp it warmed up and the glaciers melted.