Biogeochemical cycles - sedimentary - class-XI
Description: biogeochemical cycles - sedimentary | |
Number of Questions: 45 | |
Created by: Tanuja Atwal | |
Tags: ecology and environment option c: ecology and conservation ecosystem ecosystems biology ecosystem : structure and function zoology botany |
In phosphorus, cycle phosphorus enters an ecosystem, during which of the following processes?
Reservior of sulphur is
Crystalline rocks are natural source of biogenetic element
Phosphorus cycle is
Volcano eruption disturbs
In which of the following cycles does the reservoir of the
nutrient exist in material from
Which one is a sedimentary cycle?
Natural reservoir of phosphorus is :
Which one is the Sedimentary Cycle?
Which one of the following is sedimentary cycle?
Natural reservoir of phosphorus is
Which of the following elements have only the sedimentary type of nutrient cycle?
Some of the nutrient cycles are labelled as below.
Sulphur cycle (A), phosphorus cycle (B), carbon cycle (C) and nitrogen cycle (D). Of these, the sedimentary cycle is represented by
In which of the following cycles, does the reservoir of the nutrient exist in material from?
Which of the following is the major source of phosphorus?
Phosphorus cycles in the form of ____________.
Which one of the following element is the critical limiting factor in the function of ecosphere because of its irretrievable loss into the ocean ______________.
A long term global cycle which is linked by water and in
which sea floor rising play an important role is
In the phosphorus cycle, phosphate becomes available by weathering of rocks first to _____________.
Which of the following represents sedimentary type of nutrient cycle?
Lithosphere is reservoir of
Crystalline rocks are natural source of
Out of nutrient cycles of sulphur (a) phosphorus (b) carbon (c) and nitrogen (d), which one is sedimentary?
Which is not a gaseous biogeochemical cycle?
In the phosphorus cycle, weathering makes phophate available first to
The excreta rich in phosphorus would be called as _________.
Weathering of rocks makes phosphorus available to first
In water receiving regions, what does forest regulate
Sedimentary cycle having a small gaseous component also
is found in
Which nutrient does not have a gaseous phase on earth?
In a volume of air near the earth's surface, _____________ occupies 78 percent and _____________ nearly 21 percent.
Impurities in paper absorb $SO _{2}$, converting it into
$SO _{2}$ is converted to sulphuric acid in presences of
What does sulphur and nitrogen form with water in atmosphere?
Water from springs contain dissolved _____________ compounds which are used to cure some skin diseases.
What makes a Leather weak and disintegrates?
70% of sulphur dioxide comes from:
What does smoke and water form?
What is chemosynthetic microbes?
Deterioration of leather and paper is caused by
Natural sources of sulfur dioxide involves:
Which statement is not correct?
Which one of the following pairs is not correctly matched?
Which gas is known as rotten egg smell?
Which gas is produced by reduction of sulphur?