Daily Current Affairs Answer & Explanation : 02 September 2020

Question 1.    

Answer-d

Explanation:

• Heart failure means the state of heart when it is not pumping blood effectively enough to meet the needs of the body. It is sometimes called congestive heart failure because congestion of the lungs is one of the main symptoms of this disease.
• Heart failure is not the same as cardiac arrest (when the heart stops beating) or a heart attack (when the heart muscle is suddenly damaged by an inadequate blood supply).

Question 2.

Answer– d

Explanation:

• Arteries carry blood from heart to different organs to heart At any given time in a healthy human, the blood amount is same in both, as the circulation of blood never stops.

Question 3.

Answer : a

Explanation: 

• During exercise there is an increase in physical activity and muscle cells respire more than they do when the body is at rest. 
• The heart rate increases during exercise. The rate and depth of breathing increases – this makes sure that more oxygen is absorbed into the blood, and more carbon dioxide is removed from it.

Question 4.

Answer : d

Explanation :

Functions of Blood-

• Blood Transports Nutrients and Hormones
• Carries waste products away
• Controls temperature

Question 5.

Answer- a

Explanation:

• Cheeks of the people in hilly areas are more red in colour due to increase in production of R.B.C