Sunday, November 24, 2024

MCQs Science Olympiad for Class 4, Chapter - Forest, Rocks and Minerals

 Forests

  1. Which of the following is a man-made forest?
    a) Amazon Rainforest
    b) Sundarbans
    c) Mangroves
    d) Eucalyptus Plantation
    Answer: d)

  2. What is the main function of forests?
    a) To increase pollution
    b) To provide oxygen
    c) To reduce rainfall
    d) To grow weeds
    Answer: b)

  3. Which part of the forest forms its canopy?
    a) Roots
    b) Branches and leaves
    c) Trunk
    d) Soil
    Answer: b)

  4. Which type of forest is found in hot and wet regions?
    a) Temperate forests
    b) Rainforests
    c) Taiga forests
    d) Mangrove forests
    Answer: b)

  5. Which of these is a non-forest product?
    a) Rubber
    b) Honey
    c) Bamboo
    d) Plastic
    Answer: d)

  6. The Sundarbans are famous for which tree?
    a) Mango
    b) Pine
    c) Sundari
    d) Neem
    Answer: c)

  7. Which is NOT a characteristic of evergreen forests?
    a) Tall trees
    b) Shed leaves seasonally
    c) Dense foliage
    d) Found in tropical regions
    Answer: b)

  8. Why are forests called the “lungs of the Earth”?
    a) They breathe oxygen
    b) They absorb carbon dioxide
    c) They produce carbon dioxide
    d) They grow faster than other plants
    Answer: b)

  9. Which animal is commonly found in deciduous forests?
    a) Polar Bear
    b) Tiger
    c) Penguin
    d) Camel
    Answer: b)

  10. Which of the following is a protected forest?
    a) National Parks
    b) Farmland
    c) Industrial Zone
    d) Private Gardens
    Answer: a)


Rocks

  1. Which of the following is an igneous rock?
    a) Granite
    b) Sandstone
    c) Limestone
    d) Slate
    Answer: a)

  2. What is the hardest natural substance found in rocks?
    a) Quartz
    b) Diamond
    c) Gold
    d) Iron
    Answer: b)

  3. Which rock is used to make chalk?
    a) Marble
    b) Limestone
    c) Granite
    d) Slate
    Answer: b)

  4. Which rock is formed from molten magma?
    a) Sedimentary
    b) Igneous
    c) Metamorphic
    d) Fossiliferous
    Answer: b)

  5. What are rocks made up of?
    a) Metals
    b) Sand
    c) Minerals
    d) Fossils
    Answer: c)

  6. Which of these is a sedimentary rock?
    a) Obsidian
    b) Basalt
    c) Sandstone
    d) Gneiss
    Answer: c)

  7. Which rock is used to make statues?
    a) Slate
    b) Marble
    c) Shale
    d) Coal
    Answer: b)

  8. Which type of rock is formed under heat and pressure?
    a) Igneous
    b) Sedimentary
    c) Metamorphic
    d) Fossiliferous
    Answer: c)

  9. Which of these rocks is black and used as fuel?
    a) Marble
    b) Granite
    c) Coal
    d) Basalt
    Answer: c)

  10. What is pumice stone used for?
    a) Polishing surfaces
    b) Making jewelry
    c) Writing
    d) Cutting tools
    Answer: a)


Minerals

  1. Which mineral is used to make jewelry?
    a) Quartz
    b) Diamond
    c) Feldspar
    d) Gypsum
    Answer: b)

  2. Which of these minerals is used in toothpaste?
    a) Fluoride
    b) Gold
    c) Sulfur
    d) Graphite
    Answer: a)

  3. Which mineral is a source of iron?
    a) Hematite
    b) Gypsum
    c) Quartz
    d) Diamond
    Answer: a)

  4. What is the main mineral found in salt?
    a) Calcium
    b) Sodium
    c) Potassium
    d) Iron
    Answer: b)

  5. Which of the following is a metallic mineral?
    a) Mica
    b) Iron ore
    c) Quartz
    d) Gypsum
    Answer: b)

  6. What is the most abundant mineral in the Earth's crust?
    a) Diamond
    b) Feldspar
    c) Quartz
    d) Mica
    Answer: b)

  7. Which mineral is used to make pencils?
    a) Diamond
    b) Graphite
    c) Copper
    d) Mica
    Answer: b)

  8. Which of these is NOT a mineral?
    a) Coal
    b) Gold
    c) Diamond
    d) Quartz
    Answer: a)

  9. Which mineral is used in making glass?
    a) Quartz
    b) Talc
    c) Iron
    d) Feldspar
    Answer: a)

  10. Which mineral is used to make electrical wires?
    a) Iron
    b) Copper
    c) Zinc
    d) Mica
    Answer: b)


Bonus Mixed Questions 31. Which of the following forests is famous for sandalwood?
a) Sundarbans
b) Tropical Evergreen Forest
c) Deciduous Forest
d) Nilgiri Forests
Answer: d)

  1. What type of forest exists in cold regions?
    a) Deciduous
    b) Coniferous
    c) Rainforest
    d) Tropical
    Answer: b)

  2. Granite is an example of which type of rock?
    a) Igneous
    b) Sedimentary
    c) Metamorphic
    d) Fossiliferous
    Answer: a)

  3. Which type of forest is found in the Himalayas?
    a) Deciduous
    b) Coniferous
    c) Evergreen
    d) Mangrove
    Answer: b)

  4. Which rock is formed by cooling of lava?
    a) Marble
    b) Basalt
    c) Sandstone
    d) Shale
    Answer: b)


Forests

  1. Which forest product is used to make paper?
    a) Sand
    b) Wood pulp
    c) Rubber
    d) Honey
    Answer: b)

  2. What is the topmost layer of a forest called?
    a) Understory
    b) Canopy
    c) Forest Floor
    d) Shrub Layer
    Answer: b)

  3. Which forest type has trees like pine, fir, and spruce?
    a) Tropical Rainforest
    b) Deciduous Forest
    c) Coniferous Forest
    d) Mangrove Forest
    Answer: c)

  4. Why are mangrove forests important?
    a) They clean the air
    b) They prevent soil erosion
    c) They protect coasts from storms
    d) All of the above
    Answer: d)

  5. What is the main threat to forests?
    a) Conservation
    b) Afforestation
    c) Deforestation
    d) Soil Fertility
    Answer: c)

  6. Which forest layer is closest to the ground?
    a) Canopy
    b) Understory
    c) Emergent Layer
    d) Forest Floor
    Answer: d)

  7. Which tree is known for producing latex?
    a) Teak
    b) Rubber tree
    c) Banyan
    d) Neem
    Answer: b)

  8. Which forest animal helps disperse seeds?
    a) Tiger
    b) Elephant
    c) Deer
    d) Birds
    Answer: d)

  9. Which of the following is a benefit of forests?
    a) Increase carbon dioxide
    b) Increase oxygen
    c) Increase noise pollution
    d) Increase deserts
    Answer: b)

  10. Which forest is the largest rainforest in the world?
    a) Congo Rainforest
    b) Sundarbans
    c) Amazon Rainforest
    d) Taiga Forest
    Answer: c)


Rocks

  1. What is the study of rocks called?
    a) Biology
    b) Geology
    c) Zoology
    d) Mineralogy
    Answer: b)

  2. Which type of rock can contain fossils?
    a) Igneous
    b) Sedimentary
    c) Metamorphic
    d) Volcanic
    Answer: b)

  3. Which rock is commonly used for flooring and construction?
    a) Granite
    b) Slate
    c) Basalt
    d) Quartz
    Answer: a)

  4. What is a rock that changes form under pressure called?
    a) Sedimentary rock
    b) Igneous rock
    c) Metamorphic rock
    d) Crystalline rock
    Answer: c)

  5. Which rock is used in making buildings and monuments?
    a) Marble
    b) Coal
    c) Sandstone
    d) Obsidian
    Answer: a)

  6. Which of these is a volcanic rock?
    a) Pumice
    b) Slate
    c) Limestone
    d) Shale
    Answer: a)

  7. How are sedimentary rocks formed?
    a) By melting rocks
    b) By cooling magma
    c) By deposition of sediments
    d) By volcanic eruptions
    Answer: c)

  8. What kind of rock is coal?
    a) Igneous
    b) Metamorphic
    c) Sedimentary
    d) Volcanic
    Answer: c)

  9. Which rock is shiny and can be split into thin sheets?
    a) Mica
    b) Granite
    c) Basalt
    d) Limestone
    Answer: a)

  10. Which type of rock is most commonly found on Earth’s surface?
    a) Sedimentary
    b) Igneous
    c) Metamorphic
    d) Volcanic
    Answer: a)


Minerals

  1. Which mineral is commonly used in making jewelry besides diamond?
    a) Graphite
    b) Gold
    c) Feldspar
    d) Mica
    Answer: b)

  2. Which mineral is used to make cement?
    a) Limestone
    b) Quartz
    c) Coal
    d) Mica
    Answer: a)

  3. Which of these is an ore of aluminum?
    a) Hematite
    b) Bauxite
    c) Gypsum
    d) Pyrite
    Answer: b)

  4. Which mineral is also called “fool’s gold”?
    a) Pyrite
    b) Quartz
    c) Graphite
    d) Mica
    Answer: a)

  5. Which mineral is used in making mirrors?
    a) Copper
    b) Silver
    c) Quartz
    d) Gold
    Answer: b)

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