Among what trees do is take in CO2 and give out O2.
During spring/summer, there are more trees (living) than in fall/winter.
So, there is less CO2 in the atmosphere in spring/summer.
Answer: Hypochondriasis
Explanation:
Hypochondriasis is a mental disorder in, which people strongly believe that they are suffering from a life-threatening disease or illness even though no or very mild symptoms of the disease are present.
The symptoms of hypochondriasis include:
1. Excess worry about a serious illness.
2. Physical symptoms are not present and if present is mild.
3. A person suffers from a high level of anxiety.
4. Tendency to care for own self increases through repeated checking of the body signs and symptoms.
Based on the above description, the person may be worried about getting ill and continuous visits to the doctors in case of hypochondriasis even though no symptoms are present.
Answer:
carbon fixation, reduction phase, carbohydrate formation, and regeneration phase.