Oxbows and loess both show similarity as they both show the constructive power of erosion. An oxbow lake starts as a curve in a river. Oxbows are formed where the river often empties into another water body. ... A loess is a sediment which is formed by the accumulation of the wind blown silt
        
             
        
        
        
Answer:
2, that’s what the 2 means.
Explanation:
 
        
             
        
        
        
-Genetically modified crops :weather and disease resistant meaning more crops and more food available ensuring food security for many counties 
- Vaccinations : immunisation from diseases that previously proved deadly 
- Fertility assistance ,prenatal scanning, home pregnancy tests 
-research into Alzheimer’s 
- provided cancer and heart disease treatment 
- enabled growing of organs so waiting lists for transplants get shorter and more lives are saved 
        
             
        
        
        
Answer: d. assimilating the nitrogen into their own biomolecules.
Explanation: I just had this question for an assignment. 
Hope this helps!  :)