question What is the name for the layer of loose unconsolidated material covering the Earth s surface and consisting of mineral and organic particles

Science

What is the name for the layer of loose, unconsolidated material covering the Earth's surface and consisting of mineral and organic particles?

A. Bedrock
B. Soil
C. Regolith
D. Sediment

Soil is the layer of loose, unconsolidated material covering the Earth's surface.

Which of the following is an example of a homogeneous mixture?

A. Sand and Water
B. Oil and Water
C. Saltwater
D. Vinegar and Oil

Which of the following is an example of a first-class lever?

A. Wheelbarrow
B. Tweezers
C. Nutcracker
D. Seesaw

Which law of thermodynamics states that heat energy always flows from areas of higher temperature to areas of lower temperature?

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

Which structure connects the two halves of a neuron, allowing communication between them?

A. Axon
B. Dendrite
C. Synapse
D. Nucleus

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 primary function of the immune system?

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

Which of the following is a type of soil erosion where small, loose particles are lifted by the wind and transported to another location?

A. Sheet erosion
B. Rill erosion
C. Gully erosion
D. Wind erosion

What is the primary function of the cell membrane?

A. Energy production
B. Protection
C. Genetic control
D. Regulation of substances entering and leaving the cell

What is the acceleration due to gravity on the surface of the Earth?

A. 9.8 m/s²
B. 6.7 m/s²
C. 5.4 m/s²
D. 12.3 m/s²

Which of the following is a property of metals?

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