The color of blood is red due to __________?

The color of blood is red due to __________?A. Haemoglobin
B. Neutrophils
C. Esinophils
D. Hematocrit

Human blood is red because hemoglobin, which is carried in the blood and functions to transport oxygen, is iron-rich and red in color. Octopuses and horseshoe crabs have blue blood. This is because the protein transporting oxygen in their blood, hemocyanin, is actually blue.

 

The Doppler’s effect is applicable for_________?

The Doppler’s effect is applicable for_________?

A. light waves only
B. sound waves only
C. Both Light waves and sound ways
D. None of these

An apparent change in the frequency of waves, as of sound or light, occurring when the source and observer are in motion relative to each other, with the frequency increasing when the source and observer approach each other and decreasing when they move apart.
Hence, it is applicable for both sound and light waves.

Underground water and the water on the earth’s surface is called ?

Underground water and the water on the earth’s surface is called ?A. Mezosphere
B. Ionosphere
C. Hydrosphere
D. None of these

A hydrosphere is the total amount of water on a planet. The hydrosphere includes water that is on the surface of the planet, underground, and in the air. A planet’s hydrosphere can be liquid, vapor, or ice. On Earth, liquid water exists on the surface in the form of oceans, lakes and rivers.

 

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