People should learn about the currents, waves, and tides just in case of an emergency or the tides are too high. The people should know if their worried about their structure of their home, or worried about their safety.
 
        
             
        
        
        
Answer:
Today the world's population is 7.5 billion. The world's population is changing because of the natural increase rate. The natural increase rate is the crude birth rate minus the crude death rate. Since the crude birth rate is higher than the crude death rate today, this would lead to a higher natural increase rate.
Explanation:
 
        
                    
             
        
        
        
The soil that occurs in regions with extreme wet and dry seasons is known as "black soil."
Black soil:
- Chernozem is another name for black soil.
- It is largely composed of humus, phosphoric acid, phosphorus, and ammonia.
- Exceptionally small or clay-like particles constitute black soils.
- Deep gaps form during warmer weather, resulting in appropriate aeration.
Black soil characteristics include:
- It is extremely fertile and has a clay-like texture.
- At 25°C, the pH of black soil ranges from 7.2 to 8.5.
- The soil has high levels of potash, calcium, and magnesium but low levels of nitrate and phosphate.
- It is often soft when damp but hardens as it dries.
Know more about Soil at: brainly.com/question/19696600
 
        
             
        
        
        
Answer: 9-0-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-9-
Explanation: