• All chemicals in the lab should be considered hazardous.
• You should never leave a fire unattended in the lab, even for a second.
The right options are;
(atmosphere contains hydrogen and helium)
(has 50 or more moons)
(has multiple rings)
Jupiter and Saturn are gas giants that are made of hydrogen and helium gas. Jupiter is the largest planet in the solar system, and it is about 1300 times larger than planet Earth. Saturn is the second-largest planet. Jupiter and Saturn are surrounded by thousands of rings, and their speed of rotation causes strong winds, and huge cloud bands. They also have many satellites. Jupiter has about 62 moons, while Saturn has more than 30 moons.
The rising acidity of the oceans threatens coral reefs by making it harder for corals to build their skeletons. A new study identifies the details of how ocean acidification affects coral skeletons, allowing scientists to predict more precisely where corals will be more vulnerable.
Answer:
The correct answer is A. a rotating cloud of dust and gas.
Explanation:
Nebulae are regions of the interstellar medium (clouds) made up of gases (mainly hydrogen and helium) and dust. In other words, nebulae are concentrations of gas in which we find hydrogen, helium and stardust in greater quantities. They are structures that are actually very important for the universe, this because inside it is the place where stars are born, which arise due to the condensation and aggregation of matter. The nebular theory states that the Solar System reached the form current from a solar nebula (a gas cloud), more than 4.5 billion years ago. The large cloud of molecular gas was affected by a certain phenomenon that would have taken place in the vicinity. Like the explosion of a supernova or the passage of a star that would produce a strong gravitational impact. The result of this event made the matter agglomerate in different places. The high concentration of matter caused the nebula to collapse. Becoming a protostar, (bodies whose characteristic is to be surrounded by clouds and contain preplanetary matter inside), that is, gaseous matter in the outermost part and solid inward. At the core of this structure, the temperature is so dominant that nuclear reactions take place to compensate for the gravitational force. This leads to a hydrostatic equilibrium and the formation of a fundamental star: the Sun. The rest of the mass flattened, forming a protoplanetary disk where the protoplanets were being formed, which would evolve to become the current planets, their satellites and the others bodies of the solar system.
Answer:
The answer is; It protects the prairie dogs from threatening weather
Explanation:
You said the answer, I'm not really sure what you wanted to know.
