Answer:
the external appearance of a plant community, which changes throughout the year in accordance with the succession of the phases of development of plants. As a rule, aspect is repeated year in and year out in almost identical sequence.
Answer:
Your nails can help determine the oxygen supply throughout your body because it has an affect on your life. Blue fingernails are caused by a low level or lack of oxygen circulating in your red blood cells. This condition is known as Cyanosis.
Explanation:
This means that there is not enough oxygen in your blood
Answer:
True
Explanation:
Due to stress and Over thinking people get Depressed or Mental breakdown which can even leads to Sucide that's why positive though are important .