<span>Johann Heinrich von Thünen, a Prussian landowner, introduced an early theory of agricultural location in Der isolierte Staat (1826) (The Isolated State). The Thünenmodel suggests that accessibility to the market (town) can create a complete system of agricultural land use</span>
Warm air and cold air then some rain:)
<u>Answer</u>
Red, Green, Blue, Indigo.
<u>Explanation</u>
The colors listed above are some of the primary colors on the visible light spectrum.
The answer is E as space time compression does not involve the psychical environment