<u>Answer:</u>
In ecology, catastrophes permanently alter the physical structure of the existing environment.
<u>Explanation:</u>
- The ecological disturbances include flood, strom, plague, fires, earthquakes, tsunami, volcanic eruptions, climatic change and impact of humans on the environment like deforestation ,nuclear testing etc.
- These factors can have a visible impact on the structure of the earth and permanently alter the environment.
- The visible effects of these disturbances are global warming, extinction of selective species, change in the course of rivers, submergence of coastal areas, sudden movement of the tectonic plates and formation of sudden cracks on the earth's crust.
Answer:
The Great Plains are where cool dry air meets warm moist air
Explanation:
A variety of genes are involved in the control of cell growth and division. The cell cycle is the cell's way of replicating itself in an organized, step-by-step fashion. ... Cancer results from a disruption of the normal regulation of the cell cycle.
Answer:
Chimneys are ventilation channels that guide smoke and other gases that are products of combustion out from a fireplace through the roof of a building. ... The warm air can then leave the house through the chimney through the same process of rising that hot smoke does when wood is being burned.
Explanation:
