It covers around 1,200,000 square miles.
https://www.britannica.com/place/West-Siberian-Plain
<u>Answer:</u>
A solid hollow cylinder has an "infinite number of planes of symmetry".
<u>Explanation:</u>
- Two or more faces are said to be symmetric when they have the same dimensions and are geometrically identical.
- When these faces are placed in a setting with 'X', 'Y' and 'Z' axes "perpendicular to each other", they make a plane with three lines of symmetry. A circle has "infinite lines of symmetry".
- Thus, a cylinder with two openings has an "infinite number" of "planes of symmetry".
Answer:
Modern and past data models.
Explanation:
- In order to understand the earth and its climatic patterns, we need to have a deeper understanding of how the system of the earthworks and for that six spheres provides us with an adequate amount of information for documentation of climate change.
- The direct sources of data are modern climatic records and the indirect is the past and old climatic data that ay or may not be connected directly.
It's really hard to explain in words.
See the attached diagram.