question Which layer of the Earth is primarily composed of iron and nickel and is responsible for generating the planet s magnetic field

Science

Which layer of the Earth is primarily composed of iron and nickel and is responsible for generating the planet's magnetic field?

A. Crust
B. Mantle
C. Outer Core
D. Inner Core

The inner core, composed of iron and nickel, generates Earth's magnetic field.

In the human digestive system, where does the majority of nutrient absorption occur?

A. Stomach
B. Small Intestine
C. Large Intestine
D. Esophagus

In plant cells, what organelle is responsible for photosynthesis?

A. Nucleus
B. Chloroplast
C. Vacuole
D. Endoplasmic Reticulum

What is the primary function of the skeletal system?

A. Protection of organs
B. Nutrient absorption
C. Blood circulation
D. Muscle contraction

Which law of thermodynamics states that absolute zero cannot be reached in a finite number of steps?

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

What is the primary function of the immune system?

A. Transporting oxygen
B. Digesting food
C. Fighting infections
D. Producing hormones

What is the function of the lymphatic system in the human body?

A. Nutrient absorption
B. Gas exchange
C. Immune defense
D. Synthesizing proteins

What is the name of the spacecraft that successfully landed the rover "Perseverance" on Mars in 2021?

A. Opportunity
B. Curiosity
C. InSight
D. Spirit

What is the term for the process by which sediment is dropped or laid down by natural forces, such as water, wind, or ice?

A. Erosion
B. Deposition
C. Weathering
D. Sedimentation

Which type of energy is associated with the motion of an object?

A. Kinetic Energy
B. Potential Energy
C. Mechanical Energy
D. Thermal Energy

Which of Newton's laws explains the principle behind rocket propulsion?

A. Newton's First Law
B. Newton's Second Law
C. Newton's Third Law
D. Law of Inertia