Plant & Soil Science Basics
What is the main focus of plant and soil science?
A) Animal behavior
B) Study of plants and soil interactions
C) Weather forecasting
D) Marine biology
B) Study of plants and soil Science
What is the main function of roots?
A) Produce flowers
B) Absorb water and nutrients
C) Make seeds D) Provide support for leaves only
B) Absorb water and nutrients
What is soil primarily made of?
A) Sand, silt, and clay particles
B) Pure water
C) Rocks only
D) Metal
A) Sand, Silt, and clay
What is germination?
A) The process of a seed beginning to grow
B) Flower production
C) Leaf shedding
D) Seed dispersal
What is the main function of stems?
A) Absorb nutrients
B) Support leaves and transport water
C) Produce seeds
D) Perform photosynthesis
B) Support leaves and transport water
Which step is NOT part of the scientific method?
A) Observation
B) Hypothesis
C) Guesswork without evidence
D) Experiment
C) Guesswork without evidence
Which part of the plant is responsible for photosynthesis?
A) Roots
B) Stem
C) Leaves
D) Flowers
C) Leaves
How does soil texture affect plant growth?
A) It changes the color of plants
B) It impacts water retention and drainage
C) It controls sunlight exposure
D) It changes plant height directly
Which stage comes after germination?
A) Seed dispersal
B) Vegetative growth
C) Dormancy
D) Flowering
B) Vegetative growth
How does temperature affect seed germination?
A) No effect
B) Influences the speed and success of germination
C) Only affects leaf growth
D) Only affects flower color
B) Influences the speed and success of germination
Which of the following best describes agriculture?
A) Study of stars
B) Growing plants and raising animals for food and fiber
C) Building machines
D) Cooking food
B) Growing plants and raising animals for food and fiber
What is the function of fruit in plants?
A) Photosynthesis
B) Seed protection and dispersal
C) Water absorption
D) Root support
B) Seed protection and dispersal
Which soil texture has the largest particle size?
A) Clay
B) Silt
C) Sand
D) Loam
C) Sand
Which phase in the plant life cycle produces pollen?
A) Germination
B) Vegetative growth
C) Reproductive growth
D) Seed dispersal
C) Reproductive growth
What is the purpose of conducting experiments in agriculture?
A) To test new methods for improving crops
B) To avoid working outdoors
C) To guess crop yields
D) To write reports without data
A) To test new methods for improving crops
Which career is related to plant and soil science?
A) Software developer
B) Agronomist
C) Lawyer
D) Chef
B) Agronomist
Which kingdom do plants belong to?
A) Animalia
B) Fungi
C) Plantae
D) Protista
C) Plantae
What does soil pH measure?
A) Soil color
B) Soil acidity or alkalinity
C) Soil temperature
D) Soil moisture
B) Soil acidity or alkalinity
Which factor can slow plant growth?
A) Adequate sunlight
B) Poor nutrient availability
C) Proper watering
D) Suitable temperature
B) Poor nutrient availability
Which part of the flower contains pollen?
A) Ovary
B) Stigma
C) Anther
D) Petal
C) Anther
What does a hypothesis do in an experiment?
A) Provides a testable prediction
B) States random facts
C) Summarizes results
D) Describes the weather
A) Provides a testable predication
What role do flowers play in plants?
A) Food storage
B) Reproduction
C) Water absorption
D) Root growth
B) Reproduction
Which soil horizon contains organic matter?
A) C horizon
B) A horizon (topsoil)
C) B horizon
D) Bedrock
C) B Horizon
What triggers seed dormancy to end?
A) Cold temperatures only
B) Proper moisture, temperature, and sometimes light
C) Darkness only
D) Lack of oxygen
B) Proper moisture, temperature. and sometimes light
Which soil layer is known as topsoil?
A) C horizon
B) A horizon
C) B horizon
D) Bedrock
B) A Horizon