Difficulty distribution
How the classified questions are distributed by difficulty.
10questions
Easy
10
100%
Ecology and Environment - Life Sciences Previous Year Questions
Practice Ecology and Environment - Life Sciences previous year questions organised from real papers, with year-wise coverage and clear topic navigation.
7Papers
7Years
10Questions
1Topics
Ecology and Environment question pattern
Every graph below is calculated only from this selection.
Questions by year
Compare question counts across years.
Question type distribution
MCQ, numerical, multiple-select and other formats found in these papers.
10questions
MCQ
10
100%
Subject weightage
Top subjects by unique question coverage.
Most asked topics
Top topics across the included previous year papers.
Subtopic coverage
Top subtopics inside this exact selection.
Paper coverage
Question coverage for the most populated papers. Every active PYP paper remains listed below.
Browse by subtopics
Open a focused page built from the same verified paper data.
Included previous year papers
Newest papers appear first. Search these papers or sort by year and name.
| Paper name | Year | Attempt | |
|---|---|---|---|
Life Sciences (XL) 20202020 | 2020 |
|
|
Life Sciences (XL) 20122012 | 2012 | |
|
Life Sciences (XL) 20112011 | 2011 | |
|
Life Sciences (XL) 20102010 | 2010 | |
|
Life Sciences (XL) 20092009 | 2009 | |
|
Life Sciences (XL) 20082008 | 2008 | |
|
Life Sciences (XL) 20072007 | 2007 | |
|
Sample previous year questions
A varied preview from the papers represented in this selection, with every available option.
2007 · Life Sciences · Ecology and Environment · Pollution, Climate Change and Conservation
Life Sciences (XL) 2007
A bi remedial solution to reduce oxides of nitrogen and carbon in flue gases is to integrate flue gas emission to
2008 · Life Sciences · Ecology and Environment · Pollution, Climate Change and Conservation
Life Sciences (XL) 2008
Which of the following statements are true on phytoremediation point of view ?
P An effective technology that uses plants to tolerate and accumulate metals from the environment
Q Detoxification of soil phenolic pollutants by plant secretory enzymes
R Using RT-PCR to quantify gene expression in plants
S Studies on plant phylogeny and exploiting the biodiversity
2009 · Life Sciences · Ecology and Environment · Pollution, Climate Change and Conservation
Life Sciences (XL) 2009
2010 · Life Sciences · Ecology and Environment · Pollution, Climate Change and Conservation
Life Sciences (XL) 2010
Choose the most appropriate word from the options given below to complete the following sentence:
If we manage to ________ our natural resources, we would leave a better planet for our children.
If we manage to ________ our natural resources, we would leave a better planet for our children.
2011 · Life Sciences · Ecology and Environment · Pollution, Climate Change and Conservation
Life Sciences (XL) 2011
The term biological magnification refers to the increased levels of a toxin seen in successive trophic levels in a food web. Which one of the following options correctly states the reason(s) for the increment of a toxin in the ecosystem?
2012 · Life Sciences · Ecology and Environment · Pollution, Climate Change and Conservation
Life Sciences (XL) 2012