- Oxygen
- Carbon dioxide
- Water
- Minerals
Related MCQs
What is the Albedo Effect?
A.
Absorption of heat by oceans
B.
Reflection of solar energy from Earth’s surface.
C.
Melting of polar ice caps
D.
Radiation emitted by electronic devices
Correct answer is:
B. Reflection of solar energy from Earth’s surface.
In the context of Human Biology, what is the ‘Telomere’ and why is it significant in aging?
A.
A brain cell that stops functioning
B.
Protective caps at the end of chromosomes that shorten as cells divide.
C.
A stomach enzyme that breaks down proteins
D.
A type of white blood cell
Correct answer is:
B. Protective caps at the end of chromosomes that shorten as cells divide.
Chemical formula of Quartz is?
A.
CaCO3
B.
Al2O3
C.
SiO2
D.
Fe2O3
Correct answer is:
C. SiO2
Who proposed the cell theory?
A.
Hooke
B.
Haeckel
C.
Matthias Schleiden and Schwann
D.
Albrecht Von Roelliker
Correct answer is:
C. Matthias Schleiden and Schwann
The tough, waterproof protein that makes up our fingernails, toenails and hair is _____.
A.
Collagen
B.
Elastin
C.
Keratin
D.
None of these
Correct answer is:
C. Keratin