Team-1
What are rocks mainly made of?
a) Metals
b) Minerals
c) Fossils
d) Water
b) Minerals
Which type of rock is formed from cooled magma or lava?
a) Igneous
b) Sedimentary
c) Metamorphic
d) Fossilized
a) Igneous
How are sedimentary rocks formed?
a) From heat and pressure
b) From compressed and cemented sediments
c) From cooled lava
d) From melted minerals
b) From compressed and cemented sediments
Which process is responsible for breaking rocks down into sediments?
a) Melting
b) Weathering
c) Cementation
d) Crystallization
b) Weathering
What is the continuous process of rock change called?
a) The erosion cycle
b) The water cycle
c) The rock cycle
d) The mineral cycle
c) The rock cycle
What is the name for molten rock when it is underground?
a) Lava
b) Magma
c) Ash
d) Sediment
b) Magma
Which rock is an example of an intrusive igneous rock?
a) Basalt
b) Granite
c) Obsidian
d) Pumice
b) Granite
What feature is often preserved in sedimentary rocks?
a) Crystals
b) Fossils
c) Gas bubbles
d) Metal veins
b) Fossils
What transforms limestone into marble?
a) Weathering and erosion
b) Heat and pressure
c) Melting and cooling
d) Compaction and cementation
b) Heat and pressure
Which rock is an organic sedimentary rock used for energy?
a) Granite
b) Marble
c) Coal
d) Slate
c) Coal
Which type of soil has the largest particles and drains water very quickly?
a) Sandy soil
b) Clayey soil
c) Loamy soil
d) Rich soil
a) Sandy soil
What is the main organic component of soil?
a) Sand
b) Clay
c) Humus
d) Silt
c) Humus
Which type of soil is sticky when wet and has very poor drainage?
a) Sandy soil
b) Clayey soil
c) Loamy soil
d) Silt soil
b) Clayey soil
What is soil often called?
a) The Earth's core
b) The Earth's living skin
c) The Earth's mantle
d) The Earth's crust
b) The Earth's living skin
Which of these is a common use for granite and marble?
a) Making water
b) Construction and decoration
c) Generating electricity directly
d) Producing food
b) Construction and decoration
How long does it take for soil to form?
a) A few days
b) Several months
c) A few years
d) Thousands of years
d) Thousands of years
Which layer of soil is the darkest and most fertile?
a) Topsoil (A-horizon)
b) Subsoil (B-horizon)
c) Bedrock (C-horizon)
d) Humus layer
a) Topsoil (A-horizon)
What is the mixture of sand, silt, clay, and humus ideal for growing plants called?
a) Sandy soil
b) Clayey soil
c) Loamy soil
d) Bedrock
c) Loamy soil
What is the solid rock layer that serves as the source of soil particles called?
a) Topsoil
b) Subsoil
c) Bedrock
d) Humus
c) Bedrock
What are the two main processes involved in soil formation?
a) Melting and boiling
b) Weathering and erosion
c) Condensation and evaporation
d) Conduction and convection
b) Weathering and erosion
True or False: Everything we eat, wear, and use comes directly or indirectly from the soil.
a) True
b) False
a) True
The original rock that weathers to become soil is known as:
a) Child rock
b) Parent rock
c) Sedimentary rock
d) Metamorphic rock
b) Parent rock
True or False: Igneous rocks often contain fossils.
a) False
b) True
a) False
Which of these is a key importance of soil?
a) It creates wind patterns
b) It provides nutrients for crops
c) It produces Earth's magnetic field
d) It causes volcanic eruptions
b) It provides nutrients for crops
Which of these is NOT a component of soil?
a) Mineral particles
b) Water and air
c) Living organisms
d) Liquid lava
d) Liquid lava