Answer:
RADON GAS
Explanation:
Radon is a naturally occurring gas, which is produced due to the radioactive decay of the Radium element. It is one of the dense gas that is mostly concentrated in the lower portion of the houses, and are trapped in the cracks and fractures of the walls of houses and buildings.
Radon gas is an invisible, colorless and odorless gas, which is a very harmful gas, and exposure to Radon gas can cause an individual to suffer from cancer.
In recent studies, it has been found that in many parts of North America, a large number of residents are exposed to Radon gas, which led to an increased risk of cancer.
The widespread, large scale, worlddwide burning of enormous quantities of fossil fuels for their energy, such as coal, oil, and natural gas, could do that, if it ever began and became popular.
Oh, wait ! That"s what we've been doing, for a couple of centuries now !
Answer:
Explanation:Which of the following is true about dominant alleles?
- Dominant alleles mask the presence of recessive alleles.
- Dominant alleles are passed on more often than recessive alleles.
- Dominant alleles are more important than recessive alleles.
- Dominant alleles are more common in the population than recessive alleles.
- Dominant alleles are healthier than recessive alleles.
