Biology
Grade-9
Easy
Question
Which of the following is the most stable ecosystem?
- River ecosystem
- Ocean ecosystem
- Stream ecosystem
- Pond ecosystem
Hint:
The ecosystem which includes coral reefs.
The correct answer is: Ocean ecosystem
- Stable ecosystem includes the region which is capable of self-sustaining energy and recycling.
- Due to human interferences, the ecosystem is subjected to change.
- The ocean is considered to be a stable ecosystem.
- The ocean remains undisturbed due to the immense expanse of area with geographical diversity, contribution of several physical factors like salinity, temperature, oxygen concentration, etc.
Related Questions to study
Biology
Which of the following is a freshwater ecosystem?
Which of the following is a freshwater ecosystem?
BiologyGrade-9
Biology
Which of the following is categorized under the lentic ecosystem?
Which of the following is categorized under the lentic ecosystem?
BiologyGrade-9
Biology
Which is the largest ecosystem?
Which is the largest ecosystem?
BiologyGrade-9
Physics
Which of the following is not an example of friction?
Which of the following is not an example of friction?
PhysicsGrade-9
Physics
If the irregularities of the surfaces shown in the figure decreases, the friction will _____.
If the irregularities of the surfaces shown in the figure decreases, the friction will _____.
PhysicsGrade-9
Physics
If the irregularities of the surfaces shown in the figure increases, the friction will ____.
If the irregularities of the surfaces shown in the figure increases, the friction will ____.
PhysicsGrade-9
Physics
What is the figure showing?
What is the figure showing?
PhysicsGrade-9
Physics
A lubricant _____.
A lubricant _____.
PhysicsGrade-9
Physics
If we spill oil on the floor, the friction of the floor will
If we spill oil on the floor, the friction of the floor will
PhysicsGrade-9
Physics
A toy with wheels released with the same initial speed will travel farthest on a ______.
A toy with wheels released with the same initial speed will travel farthest on a ______.
PhysicsGrade-9
Physics
Which of the following is not a smooth surface?
Which of the following is not a smooth surface?
PhysicsGrade-9
Physics
Which of these affect the force of friction?
Which of these affect the force of friction?
PhysicsGrade-9
Physics
SI Unit to measure friction is
SI Unit to measure friction is
PhysicsGrade-9
Physics
“More is the pressure exerted on the surface, more will be the friction.”
“More is the pressure exerted on the surface, more will be the friction.”
PhysicsGrade-9
Physics
A car is turning on a turn and suddenly a pool of water appears on the road. Which diagram best shows how the pool of water will affect the path of the car after the car goes through it.
A car is turning on a turn and suddenly a pool of water appears on the road. Which diagram best shows how the pool of water will affect the path of the car after the car goes through it.
PhysicsGrade-9