Science Primers. Physical Geography

The invisible substance of the atmosphere - carbon dioxide-gives us the ability to breathe. Understanding of its value comes when we learn that the gas is soluble in water, and there is a large amount of it in the air due to the respiration of living organisms and plants, the presence of volcanic activity on earth. In the process of photosynthesis, it is absorbed by green plants. In a solid form (dry ice) it is used in refrigeration. In the gaseous state - in carbonated beverages, fire extinguishers, and as an inert medium for welding. If you inhale an excessive amount of carbon dioxide, you may suffocate. Studies have shown that an increase in its amount in the atmosphere leads to the so-called greenhouse effect and global warming. The book will help you understand how other natural phenomena occur and why they are needed in nature.