Normally tree rings will disappear, damage, or go missing when the tree doesn't have enough nutrients, another factor that contributes to that is drought.
Answer:
The answer is oxygen and glucose
Pollution is always a good way to go but you don't have to do air pollution you can do water pollution or both air and water pollution.
IDK.
I don't know.
I don't understand the question.
Answer:
The correct answer is both are produced in red bone marrow.red blood cells transport oxygen while white blood cells protect the body against disease.
Explanation:
Red blood cells or RBC contain hemoglobin protein that helps in the transport of oxygen and carbon dioxide to and from our body.
Where as white blood cells provide defence to our body against various invaded pathogens.There are many types of White blood cells such as eosinophyll, basophyll,neutrophyll,monocyte and lymphocyte.
Both RBC and WBC are generated from red bone marrow.