Answer:
True
Explanation:
A nebula is a gigantic space cloud of dust and gas. Several nebulae (more than one nebula) come from the gas and dust thrown out by the explosion of a star that is dying, like a supernova. Other nebulae are giant celestial dust clouds where new stars are starting to form. Nebulae are made of dust and gas—mostly hydrogen and helium.
The answer is B) Inca. Extensive road network across plains, deserts and mountains reaching all corners of the empire was one of the notable features of the Inca empire like terraced farming, canals, crop rotation and irrigation as agricultural innovations. It allowed smooth military operations, trading, and the use of runners or chasquis.
<em>Jet Streams.</em>
<em />
<em>Hope it can help !!!</em>
