Answer
The correct option is B.
Reason
A brief technical explanation for each option is given below.
a. Asthma
It is lower respiratory disorder in which air passage way become narrow and swells, produce extra mucus which make difficulty in breathing, and trigger sneezing, wheezing and shortness of breath.
b. Pleurisy
It is lung disease in while pleura, lining of lung and chest cavity become inflamed due to accumulation of pleural fluid. The fluid is accumulated through the process of pleural effusion which may be transudate or exudate.
c. Pulmonary hypertension
It is a condition in which blood pressure increase in lung arteries. It leads to shortness of breath, swelling of legs and fast heartbeat.
d. COPD
Stand for chronic obstructive pulmonary disorder. It is a progressive lung disorder accompanied with chronic bronchitis, emphysema and non-reversible asthma.
e. Emphysema
In this type of lung disorder the alveoli block due to accumulation of fluid in it, that result into low exchange of gases (oxygen and carbon dioxide).
Answer:
The three types of consumers in the animal kingdom are carnivores, herbivores and omnivores. Carnivores eat only meat. Herbivores eat only plants, while omnivores need to consume both plants and meat to satisfy their dietary requirements.
Explanation:
<span>Serotonin and norepinephrine are the types of neurotransmitters that are released.
REM sleep is the rapid eye movement sleep and mostly it occurs after 90 minutes when you sleep and at that time specific brainstem neurons have their activity reduced and you can also have intense dreams in that time period. There are also stages during rapid eye movement sleep.</span>
Relying on a short list of major food crops is a concern.
<u>Explanation:</u>
Different food crops require different types of soil. Thus all kinds of food crops cannot be cultivated in the soil of a country. In addition to that the amount of land available for cultivation is limited by growing settlements and industries.
Thus growing reliance on limited number of food crops is a serious issue. When all the people start depending on a few type of major food crops the production from agriculture won’t be able to feed all the population. The increase in demand for major food crops will result in the increase in their prices.
This would mean that only the wealthy would be able to afford them. This will eventually lead to poverty and decline in economic growth.
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