Answer:
1. High pressure: Happens when air cools and it becomes denser...
2. Low pressure: Happens when warm air rises...
3. Cold front: Cold air mass is replacing a warm air mass...
4. Warm front: Warm air mass is replacing a cold air mass...
5. Sun: Is necessary for evaporation to take place.
6. Nimbus clouds: Dark clouds that have rain or snow falling.
7. Cumulus clouds: Fluffy, dense clouds most composed of droplets.
8. Atmosphere: The layer of gases that surround the Earth.
9. Nitrogen: Makes up 78% of Earth's atmosphere.
10. Troposphere: Lowest layer of Earth's atmosphere. Where we live. Where we find most weather.
-Hope this helps.
Geographical variation refers to differences among populations in genetically based traits across the natural geographic range of a species. ... In the simplest case, we divide these factors into purely genetic versus environmental components to tease apart their relative contributions to observed phenotypic variation.
When water freezes(ice) it expands slightly
think ice cube tray, and why the amount of ice you get is more than the amount of water you put in<span />
Answer:
Retinoblastoma is more common in people due to the mutation of RB gene in them.
Explanation:
Retinoblastoma is a disease that affects the eyes of an individual. It is more commonly eye cancer which occurs on the retina of the eye. Retinoblastoma mainly affects younger children.
When the RB gene is mutated or it is deleted already on any one of a homologous chromosomes, then only one hit rather that two which is needed to cause the development of retinoblastoma and hence the probability is of retinoblastoma to occur is higher in the individuals who have already inherited the RB deletion and also have a genetic predisposition for the retinoblastoma.
