Nutrient cycles - class-IX
Description: nutrient cycles | |
Number of Questions: 52 | |
Created by: | |
Tags: option c: ecology and conservation botany environmental science ecology organisms and their environment biology ecosystem biogeochemical cycles ecosystems energy flow in an ecosystem |
Which one of the following is not one of the three aspects studied in biogeochemical cycling?
The reservoir for the gaseous type of biogeochemical cycle exists in.
Which of the following are the examples of biogeochemical cycle?
The reservoir pool for gaseous cycles of matter is
Study of biogeochemical cycles is called as biogeochemistry, it involves
Cycling of elements in an ecosystem is called as
Which of the following cycle would be affected if decomposers of an ecosystem vanish?
Which one of the following pairs is a sedimentary type of biogeochemical cycle
If all decomposers are removed from an ecosystem, what will happen?
Living organisms require ............. to produce proteins and nucleic acids in their body.
Which one of the following is not a gaseous biogeochemical
cycle in ecosystem
Cycling of elements in an ecosystem is called
The circulation or cycling of elements in an ecosystem is known as
In ecosystem, cycling of nutrients is called
____________ is a mixture of 50 - 90% of methane
Which chemical is used in air conditions and refrigerators?
What is percentage of S, Ca and K?
Shale Gas is becoming more and more popular in today's Global Gas Exploration Market. Which among the following property of Shale Gas makes it a potential replacement to the conventional Natural gas?
Cycling of elements in any ecosystem is called as
The utilization of elements and compounds in nature and their subsequent return to the environment is called
Biogeochemical cycling means cycling of
Which one of these is a sedimentary cycle?
The flow of materials from non living components to living components and back to the non living components in a more or less cyclic manner is called as
Source of maximum sulphur in reservoir of sulphur is
Biogeochemical cycles are also known as
Biogeochemical cycles can be traced in
The natural cycle that circulates elements between the earth and the environment is called as
Which of the following is a sedimentary cycle?
Plant maintains the balance of ......... in the atmosphere.
An ecosystem, such as an aquarium, is self-sustaining if it involves the interaction between organisms, a flow of energy, and the presence of
The conversion of $\displaystyle $ is known as
Biogeochemical cycles
Biogeochemical cycle involves .......... factors.
________ is required to maintain the balance in nature.
Biogeochemical cycles are of
Oxygen forms about ............. of the air in the atmosphere.
If wild animals are killed, what difficulty would we face?
Which one of the following pairs is a sedimentary type of biogeochemical cycle __________.
Which of the following cycle would be affected if decomposers of an ecosystem vanish ______________.
Biogeochemical cycles are of _____________.
Sedimentary cycle having a small gaseous component is found in
Which of the following occurs in abiotic component of an ecosystem?
Which ones are reservoirs of phosphorus and nitrogen cycles respectively?
For the sedimentary type of biogeochemical cycles, the reservoir is
In which of the following both pairs have correct combination?
A biogeochemical cycle without an atmospheric component is
For sedimentary type of biogeochemical cycles, the reservoir is
Biogeochemical cycles can be traced in
Biogeochemical cycling means cycling of
The path through which nutrients are passed from one acceptor to the other is called _______.
Source of maximum sulphur is/reservoir of sulphur is