Smartindia Classroom
CONTENTS
Maths
English
Physics
Chemistry
Biology
History
Geography
Computer
Business Studies
Economics
Back to home
Start Practice
Question-1
How are the boundaries between biomes (ecotones) usually seen as?
(A)
Gradual transition zones
(B)
Abrupt changes in vegetation, but not of animals
(C)
Abrupt changes in both vegetation and animals
(D)
Distinct topographic barriers such as mountains and rivers
Question-2
The major biotic components of ecosystems include:
(A)
temperature, moisture, sunlight, and pH.
(B)
producers, herbivores, carnivores, and plants
(C)
plants, animals, climate, and microorganisms
(D)
producers, consumers, decomposers, and detritus feeders
Question-3
The first trophic level refers to:
(A)
all animals
(B)
all herbivores
(C)
sunlight
(D)
all green plants
Question-4
Which is a more accurate way of dating rocks, absolute or relative dating?
(A)
Absolute dating
(B)
Relative dating
(C)
They are equally accurate
(D)
Both are inaccurate?
Question-5
The climate of a given region is:
(A)
The average temperature and precipitation conditions
(B)
Its weather
(C)
Average temperature and precipitation conditions for every day of the year in a given region
(D)
Its weather patterns
Question-6
A biomass pyramid is important because it illustrates:
(A)
The biomass of all organisms at each trophic level in a system
(B)
How energy flows through a food web
(C)
The number of species in each trophic level
(D)
The number of trophic levels in a system
Question-7
What is the percentage of nitrogen gas in the atmosphere?
(A)
0.03%
(B)
1%
(C)
Approximately 50%
(D)
78%
Question-8
The accumulation of herbivore biomass in an ecosystem is an example of:
(A)
Bio geochemical cycles
(B)
Transpiration
(C)
Net primary productivity
(D)
Secondary productivity
Question-9
The major reservoir for phosphorus.
(A)
Aquifers
(B)
Soil and rocks
(C)
The atmosphere
(D)
The sun
Question-10
The kind of place to which a species is biologically adapted to live is its:
(A)
Optimum
(B)
Niche
(C)
Habitat
(D)
Zone of stress
Your Score 0/10
Click
here
to see your answersheet and detailed track records.
Cambridge Secondary Grade 10
IGCSE
Practice in Related Chapters
Feeding
Cells and Tissues
Ecosystems
Population
Transport in Plants
The Chemicals of Living Cells
Sensitivity
Energy For Respiration
How Substances Get In and Out of Cells
Photosynthesis and Nutrition in Plants
Plant Structure and Function
Food and Diet
The Interdependence of Living Organisms
The Human Impact on the Environment
The Blood Circulatory System
Digestion, Absorption and Use of Food
Breathing
Excretion and the Kidneys
Human Reproduction
Reproduction
Classification
Conservation
Micro Organisms
Reproduction in Flowering Plants
Movement and Locomotion
Growth and Development
A Sexual Reproduction and Cloning Plants
The Skeleton, Muscles and Movement
The Senses
Co-ordination
Personal Health
Disease: cause, transmission and control
Genetics
Powered By
