A decrease in the overall volume of gases like hydrogen can prevent nuclear fusion in a nebula.
Explanation:
Nuclear fusion: The reaction of combining two or more atomic nuclei to form one or more different atomic nuclei and subatomic particles is known as nuclear fusion. A single heavy nucleus is formed from two lighter nuclei. Helium is made by fusing Hydrogen atoms together.
Nebula: A nebula is a giant cloud dust and gas in space. Nebulae are formed out of the gas and dust that are thrown out by the explosion of a dying star.
A decrease in the overall volume of gases like hydrogen can prevent nuclear fusion in a nebula.
The right option is; carrying capacity
The carrying capacity is the maximum number of organisms that can be supported in a specific area within limited natural resource such as food, habitat, and water. The carrying capacity for any environment is not fixed and it can be influenced by certain factors such as water and food availability, and environmental conditions.
RNA plays central role in the pathway from DNA to proteins.
Because we know that 15% of the population does not have the allele we can assume that at least 85% of the population has at least on copy of the dominant allele.
Answer:
For the 1st one it's Jet streams and the 2nd one is South