  Since 990 is divisible by ten, the answer is 990. If you were rounding off 994 the answer would also be 990. If you were rounding off 995, the answer would be 1,000.
Jupiter is the largest and most massive planet in the solar system. It was named after the chief Roman god. It is a gas giant composed of liquid and gaseous matter, and has many moons. Some of the storms in its atmosphere have lasted hundreds of years.
Jupiter's atmosphere is thick and has a lot of gases. The planet Jupiter has a very gaseous atmosphere, comprised mainly of helium and hydrogen.Jupiter actually has no soli â¦ d land beneath its gassy layers, just thicker clouds of gas within itself.upiter's atmosphere is thick and has a lot of gases. The planet Jupiter has a very gaseous atmosphere, comprised mainly of helium and hydrogen.