Question

Which of the following is not a correct statement?
[A] One liter of cold air will be heavier than one liter of hot air
[B] Bats are blind but can fly in the dark because of echolocation
[C] In human body, Liver stores glucose as glycogen
[D] Foot and mouth disease of cattle is a viral disease​

Answer 1

HEYA MATE....

Which of the following is not a correct statement?

[A] One liter of cold air will be heavier than one liter of hot air

[B] Bats are blind but can fly in the dark because of echolocation

[C] In human body, Liver stores glucose as glycogen

[D] Foot and mouth disease of cattle is a viral disease

ANSWER.....

[B] Bats are blind but can fly in the dark because of echolocation

Answer 2

Answer:

"Bats are blind but they can fly in the dark because of echolocation" is not a correct statement.

Therefore, the option [B] is correct.

Explanation:

• "One liter of cold air is heavier than one liter of hot air" is a correct statement. At low temperature, collisions are less between the molecules, so an interatomic attractive force dominates. When temperature increased, the vibrations increase and molecules get free. They start to move around freely. When number of collisions between the molecules increase, decrease in the density of the substance. The rarer air is lighter than the denser air. Therefore, 1 liter cold air is heavier than 1 liter hot air.
• Bats are not blind. In fact they can see quite well using their eyes. Most bats have advanced ears which give a form of vision in the dark is called echolocation. These good ears make them no need to have good eyes. Therefore the given statement is incorrect .
• Glucose is the main source of energy for our cells in human body. When our body doesn't require the glucose for energy, it stores it in the liver. This stored form of glucose consists many connected glucose molecules is known as glycogen. So, the given statement is correct.
• Foot and mouth disease (FMD) is a severe, highly infectious viral disease.  FMD virus causes illness in sheep, goats, deer, cows, pigs, and other animals with divided hooves. But it does not affect cats, horses or dogs. Therefore, the given statement is correct.