Science : Chapter – Plants 50 MCQ for Class – 3 , 4
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Chapter Name : Plants 50 MCQ for Class – 3 , 4
Chapter – Plants MCQ (Q.1 – Q.10)
Q (1) : What do plants need to grow?
(a) Water
(b) Sunlight
(c) Soil
(d) All of the above
Answer: (d) All of the above
Q (2) : Which part of the plant absorbs water?
(a) Leaves
(b) Roots
(c) Stem
(d) Flowers
Answer: (b) Roots
Q (3) : What process do plants use to make food?
(a) Respiration
(b) Photosynthesis
(c) Digestion
(d) Absorption
Answer: (b) Photosynthesis
Q (4) : Which part of the plant is often colorful and attracts insects?
(a) Roots
(b) Leaves
(c) Flowers
(d) Stems
Answer: (c) Flowers
Q (5) : What type of plants do not have seeds?
(a) Flowering plants
(b) Non-flowering plants
(c) Trees
(d) Shrubs
Answer: (b) Non-flowering plants
Q (6) : What is the main function of leaves?
(a) To support the plant
(b) To absorb sunlight
(c) To store water
(d) To attract insects
Answer: (b) To absorb sunlight
Q (7) : Which gas do plants take in during photosynthesis?
(a) Oxygen
(b) Carbon dioxide
(c) Nitrogen
(d) Hydrogen
Answer: (b) Carbon dioxide
Q (8) : Which part of the plant supports it and holds it upright?
(a) Roots
(b) Leaves
(c) Stem
(d) Flowers
Answer: (c) Stem
Q (9) : Which of these is NOT a type of plant?
(a) Fern
(b) Mushroom
(c) Tree
(d) Shrub
Answer: (b) Mushroom
Q (10) : How do plants reproduce?
(a) Through seeds
(b) Through spores
(c) Both (a) and (b)
(d) None of the above
Answer: (c) Both (a) and (b)
Computer MCQ (Q.12 – Q.20)
Q (11) : What do we call a plant that lives for many years?
(a) Annual
(b) Biennial
(c) Perennial
(d) Seasonal
Answer: (c) Perennial
Q (12) : Which part of the plant is responsible for producing seeds?
(a) Roots
(b) Leaves
(c) Flowers
(d) Stems
Answer: (c) Flowers
Q (13) : Which plant is known for its thorns?
(a) Rose
(b) Daisy
(c) Sunflower
(d) Maple
Answer: (a) Rose
Q (14) : What is the green pigment in plants called?
(a) Chlorophyll
(b) Carotene
(c) Melanin
(d) Hemoglobin
Answer: (a) Chlorophyll
Q (15) : What do we call the process by which plants lose water?
(a) Absorption
(b) Transpiration
(c) Respiration
(d) Evaporation
Answer: (b) Transpiration
Q (16) : Which type of tree sheds its leaves in winter?
(a) Evergreen
(b) Deciduous
(c) Fruit tree
(d) Palm
Answer: (b) Deciduous
Q (17) : What do plants need for photosynthesis besides sunlight and carbon dioxide?
(a) Soil
(b) Water
(c) Fertilizer
(d) Air
Answer: (b) Water
Q (18) : What is a seed?
(a) A young plant
(b) A part of the flower
(c) A plant’s food
(d) A plant’s reproductive part
Answer: (d) A plant’s reproductive part
Q (19) : Which plant grows in water?
(a) Cactus
(b) Water lily
(c) Oak tree
(d) Pine tree
Answer: (b) Water lily
Q (20) : What do you call a plant that grows in dry places?
(a) Aquatic plant
(b) Cactus
(c) Tropical plant
(d) Fern
Answer: (b) Cactus
Computer MCQ (Q.21 – Q.30)
Q (21) : What is the purpose of roots?
(a) To make food
(b) To absorb nutrients and water
(c) To produce flowers
(d) To support the leaves
Answer: (b) To absorb nutrients and water
Q (22) : Which of the following is NOT a vegetable?
(a) Carrot
(b) Potato
(c) Apple
(d) Lettuce
Answer: (c) Apple
Q (23) : What do we call a plant that has seeds but no flowers?
(a) Fern
(b) Moss
(c) Gymnosperm
(d) Angiosperm
Answer: (c) Gymnosperm
Q (24) : Which plant is often found in forests and grows very tall?
(a) Shrub
(b) Grass
(c) Tree
(d) Vine
Answer: (c) Tree
Q (25) : What is the main use of flowers for plants?
(a) To store food
(b) To produce seeds
(c) To absorb sunlight
(d) To support the stem
Answer: (b) To produce seeds
plants_class3
Q (26) : Which of these is a type of fruit?
(a) Carrot
(b) Strawberry
(c) Lettuce
(d) Celery
Answer: (b) Strawberry
Q (27) : What do plants provide for humans?
(a) Oxygen
(b) Food
(c) Shade
(d) All of the above
Answer: (d) All of the above
Q (28) : How do plants get nutrients?
(a) From soil
(b) From air
(c) From water
(d) All of the above
Answer: (a) From soil
Q (29) : What is the top part of the plant called?
(a) Root
(b) Stem
(c) Leaf
(d) Flower
Answer: (b) Stem
Q (30) : Which plant is often used in cooking?
(a) Dandelion
(b) Rose
(c) Basil
(d) Sunflower
Answer: (c) Basil
Computer MCQ (Q.31 – Q.40)
Q (31) : What type of plant grows quickly in one season?
(a) Perennial
(b) Biennial
(c) Annual
(d) Evergreen
Answer: (c) Annual
Q (32) : What is the protective outer covering of a seed called?
(a) Seed coat
(b) Pod
(c) Shell
(d) Husk
Answer: (a) Seed coat
Q (33) : Which plant has medicinal properties?
(a) Aloe Vera
(b) Grass
(c) Oak
(d) Pine
Answer: (a) Aloe Vera
Q (34) : What is the main purpose of a flower’s fragrance?
(a) To attract animals
(b) To repel insects
(c) To provide shade
(d) To produce seeds
Answer: (a) To attract animals
Q (35) : Which part of a plant is usually green and flat?
(a) Leaf
(b) Stem
(c) Root
(d) Flower
Answer: (a) Leaf
Q (36) : What type of environment do most plants need to thrive?
(a) Cold
(b) Dry
(c) Warm and wet
(d) Dark
Answer: (c) Warm and wet
Q (37) : What is compost made from?
(a) Plastic
(b) Organic waste
(c) Metal
(d) Glass
Answer: (b) Organic waste
Q (38) : How do plants help the environment?
(a) By providing oxygen
(b) By preventing soil erosion
(c) By providing food for animals
(d) All of the above
Answer: (d) All of the above
Q (39) : Which plant has large, broad leaves and grows in wet areas?
(a) Cactus
(b) Lotus
(c) Pine tree
(d) Fern
Answer: (b) Lotus
Q (40) : What is the main ingredient in soil?
(a) Water
(b) Rocks
(c) Organic matter
(d) Air
Answer: (c) Organic matter
Computer MCQ (Q.41 – Q.50)
Q (41) : What do you call a plant that grows on other plants?
(a) Parasite
(b) Climber
(c) Epiphyte
(d) Herb
Answer: (c) Epiphyte
Q (42) : Which part of the plant helps in reproduction?
(a) Roots
(b) Leaves
(c) Flowers
(d) Stems
Answer: (c) Flowers
Q (43) : What do we call plants that grow in cold regions?
(a) Tropical plants
(b) Arctic plants
(c) Desert plants
(d) Temperate plants
Answer: (b) Arctic plants
Q (44) : What is a common example of a climbing plant?
(a) Bamboo
(b) Sunflower
(c) Ivy
(d) Cactus
Answer: (c) Ivy
Q (45) : Which of the following is a seedless plant?
(a) Fern
(b) Pine
(c) Apple tree
(d) Tomato plant
Answer: (a) Fern
Q (46) : How do plants adapt to their environment?
(a) Changing colour
(b) Growing different shapes
(c) Both (a) and (b)
(d) None of the above
Answer: (c) Both (a) and (b)
Q (47) : What is a plant that grows on land called?
(a) Aquatic plant
(b) Terrestrial plant
(c) Submerged plant
(d) Floating plant
Answer: (b) Terrestrial plant
Q (48) : What type of tree stays green all year round?
(a) Deciduous
(b) Evergreen
(c) Fruit tree
(d) Bamboo
Answer: (b) Evergreen
Q (49) : What do we call the small parts of a flower that often have color?
(a) Petals
(b) Sepals
(c) Stems
(d) Leaves
Answer: (a) Petals
Q (50) : Which of these is a plant that grows in very dry places?
(a) Cactus
(b) Willow
(c) Fern
(d) Maple
Answer: (a) Cactus
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