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.
Economic growth and development
C, cause the sail actually gave more crew men jobs, also adding members to ships, employing more people
It is clear that from 2006 to 2012, the average insolation reflected by the Greenland ice sheets is decreasing. This indicates that each year, the amount of solar radiation that the ice sheets are able to reflect is decreasing. The level of insolation reflected is dependent on the area of ice sheets capable of reflecting the solar energy. Since the insolation reflected has decreased, this may mean that the area of the ice sheets has decreased as well.
