question Which type of galaxy has a flattened disk structure with spiral arms and a central bulge

Science

Which type of galaxy has a flattened disk structure with spiral arms and a central bulge?

A. Elliptical galaxy
B. Spiral galaxy
C. Irregular galaxy
D. Lenticular galaxy

Spiral galaxies have a flattened disk structure with spiral arms and a central bulge.

In a chemical reaction, what is the term for substances on the left side of the arrow?

A. Products
B. Reactants
C. Catalysts
D. Inhibitors

What is the chemical symbol for bromine?

A. Br
B. B
C. Ba
D. Be

Which of the following is a property of metals?

A. Brittle
B. Low melting points
C. Poor conductors of heat
D. Malleable and ductile

What is the function of the Eustachian tube in the human ear?

A. Equalizing air pressure
B. Transmitting sound waves
C. Detecting vibrations
D. Amplifying sound

What is the term for a sudden and violent shaking of the ground caused by the movement of tectonic plates?

A. Erosion
B. Tsunami
C. Volcanism
D. Earthquake

Which of the following is an example of a redox reaction?

A. Combustion of methane
B. Dissolving salt in water
C. Mixing vinegar and baking soda
D. Rusting of iron

What is the name of the process by which a substance changes directly from a solid to a gas without passing through the liquid phase?

A. Melting
B. Freezing
C. Sublimation
D. Condensation

Which element is the most abundant in the Earth's crust?

A. Oxygen
B. Silicon
C. Aluminum
D. Iron

Which law of thermodynamics defines temperature in terms of the concept of heat flow?

A. Zeroth Law
B. First Law
C. Second Law
D. Third Law

Which part of the human eye contains cells that are sensitive to light and responsible for vision?

A. Cornea
B. Lens
C. Retina
D. Iris