The statement above is true.
Coal used to be the primary source of energy of our civilizations, almost all our technology used coal back then. Train, cooking stove, machine in the factory, etc.
Now, it's used to make coke ( the building material, not the drinks). pencil, and in village usually to replace firewood.
Answer: No food for other animals
Explanation: The decline of frogs in a food chain is highly bad for an ecosystem, for one main reason because other species eat frogs and they won't have any frogs to eat. Therefore other species are forced to eat more of another as opposed to frogs, and if not then they might end up becoming extinct.
Answer: URANUS.
Explanation: An exoplanet can be defined as a planet that exists outside the Earth's solar system.
Now, URANUS is a planet in earth's solar system. It is the seventh planet with twenty seven known moons. It is a gas giant although most of the planets is ice, it is therefore also referred to an an ice giant to distinguish it from the main gas giants.
It contains more "ices" such as water, ammonia, and methane, along with traces of other hydrocarbons. Because of its composition of ammonia, and methane, it can be similar to the exoplanet that reveals significant amounts of methane with smaller amounts of ammonia.
Answer: waxing~ Wax as an intransitive verb means to grow in size, where
as wane means to shrink in size. In terms of moon phases, waxing means getting fuller, going towards a full moon.Waning-
Waning is the opposite, getting thinner, going towards a new moon.
Explanation:
GIS is basically used to study geologic features and etc, it creates 3D displays of geographic features
