UPSC Exam  >  UPSC Questions  >  The term Dendrochronology denotesa)Method of ... Start Learning for Free
The term Dendrochronology denotes 
  • a)
    Method of Plant tissue culture used to produce clones of a plant 
  • b)
    Method of determining the age of the tree 
  • c)
    Production of multiples of plants in the absence of seeds 
  • d)
    Alteration of the genome of a plant by the addition of new genetic material
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
The term Dendrochronology denotesa)Method of Plant tissue culture used...
is the scientific method of determining the age of a tree by analyzing its growth rings. It is derived from the Greek words "dendron" meaning tree, "chronos" meaning time, and "logos" meaning study. The study involves analyzing the patterns of tree rings to reveal information about past environmental conditions and events.

Method of determining the age of the tree:
- Dendrochronology can be used to determine the age of a tree by counting its growth rings. Each growth ring represents one year of the tree's life.
- The growth rings are formed due to the annual growth cycle of trees, which includes periods of active growth (spring and summer) and dormancy (fall and winter).
- In regions with distinct seasonal variations, the growth rings are clearly visible and can be counted to determine the age of the tree.
- The analysis of growth rings also provides information about the tree's growth rate, as wider rings indicate favorable growth conditions, while narrower rings indicate unfavorable conditions.

Use of growth rings to study environmental conditions:
- Dendrochronology not only helps determine the age of a tree but also provides valuable information about past environmental conditions.
- The width, density, and chemical composition of growth rings can be analyzed to study factors such as climate, temperature, rainfall, and nutrient availability.
- Scientists can identify patterns in tree ring widths and compare them with historical climate data to reconstruct past climate conditions.
- This information is crucial for understanding long-term climate changes, studying the impact of human activities on the environment, and predicting future climate trends.

Applications of dendrochronology:
- Dendrochronology has various applications in different fields, including archaeology, climatology, and ecology.
- In archaeology, tree rings can be used to date wooden artifacts and structures, providing valuable chronological information.
- In climatology, tree ring data can be used to reconstruct past climate conditions and understand climate variability over centuries or even millennia.
- In ecology, dendrochronology helps study the growth patterns and dynamics of forests, providing insights into forest ecology and management.

In conclusion, dendrochronology is a method of determining the age of a tree by analyzing its growth rings. It has wide-ranging applications and provides valuable information about past environmental conditions.
Free Test
Community Answer
The term Dendrochronology denotesa)Method of Plant tissue culture used...
The most common method of determining the age of the tree is Dendrochronology – or tree-ring dating also called growth rings. Each year, roughly a tree adds to its girth, the new growth is called a tree ring. By counting the rings of a tree, the age can be determined.
Explore Courses for UPSC exam

Similar UPSC Doubts

Passage-1 ‘Desertification’ is a term used to explain a process of decline in the biological productivity of an ecosystem, leading to total loss of productivity. While this phenomenon is often linked to the arid, semi-arid and sub-humid ecosystems, even in the humid tropics, the impact could be most dramatic. Impoverishment of human-impacted terrestrial ecosystems may exhibit itself in a variety of ways : accelerated erosion as in the mountain regions of the country, salinization of land as in the semi-arid and arid ‘green revolution’ areas of the country, e.g., Haryana and western Uttar Pradesh, and site quality decline—a common phenomenon due to general decline in tree cover and monotonous monoculture of rice/wheat across the Indian plains. A major consequence of deforestation is that it relates to adverse alterations in the hydrology and related soil and nutrient losses. The consequences of deforestation invariably arise out of site degradation through erosive losses. Tropical Asia, Africa and South America have the highest levels of erosion. The already high rates for the tropics are increasing at an alarming rate (e.g., through the major river systems— Ganga and Brahmaputra, in thecontext), due to deforestation and land management practices subsequent to forest clearing. In the mountain context, the declining moisture retention of the mountain soils, drying up of the ‘underground springs and smaller rivers in the Himalayan could be attributed to drastic changes the forest cover. An indirect consequence is drastic alteration in the uplandlowland interaction, mediated through water. The current concern the tea planter of Assam has is about the damage to tea plantations due to frequent inundation along the flood-plains of Brahmaputra, and the damage to tea plantation and the consequent loss in tea productivity is due to rising level of the river bottom because of siltation and the changing course of the river system. The ultimate consequences of site desertification are soil degradation, alteration in available water’ and its quality, and the consequent decline in food, fodder and fuelwood yields essential for the economic wellbeing of rural communities.=>According to the passage, which of the following are the consequences of decline in forest cover?1. Loss of topsoil2. Loss of smaller rivers3. Adverse effect on production4. Declining of groundwater.Q. Select the correct answer using the code given below.

Top Courses for UPSC

The term Dendrochronology denotesa)Method of Plant tissue culture used to produce clones of a plantb)Method of determining the age of the treec)Production of multiples of plants in the absence of seedsd)Alteration of the genome of a plant by the addition of new genetic materialCorrect answer is option 'B'. Can you explain this answer?
Question Description
The term Dendrochronology denotesa)Method of Plant tissue culture used to produce clones of a plantb)Method of determining the age of the treec)Production of multiples of plants in the absence of seedsd)Alteration of the genome of a plant by the addition of new genetic materialCorrect answer is option 'B'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about The term Dendrochronology denotesa)Method of Plant tissue culture used to produce clones of a plantb)Method of determining the age of the treec)Production of multiples of plants in the absence of seedsd)Alteration of the genome of a plant by the addition of new genetic materialCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The term Dendrochronology denotesa)Method of Plant tissue culture used to produce clones of a plantb)Method of determining the age of the treec)Production of multiples of plants in the absence of seedsd)Alteration of the genome of a plant by the addition of new genetic materialCorrect answer is option 'B'. Can you explain this answer?.
Solutions for The term Dendrochronology denotesa)Method of Plant tissue culture used to produce clones of a plantb)Method of determining the age of the treec)Production of multiples of plants in the absence of seedsd)Alteration of the genome of a plant by the addition of new genetic materialCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for UPSC. Download more important topics, notes, lectures and mock test series for UPSC Exam by signing up for free.
Here you can find the meaning of The term Dendrochronology denotesa)Method of Plant tissue culture used to produce clones of a plantb)Method of determining the age of the treec)Production of multiples of plants in the absence of seedsd)Alteration of the genome of a plant by the addition of new genetic materialCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of The term Dendrochronology denotesa)Method of Plant tissue culture used to produce clones of a plantb)Method of determining the age of the treec)Production of multiples of plants in the absence of seedsd)Alteration of the genome of a plant by the addition of new genetic materialCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for The term Dendrochronology denotesa)Method of Plant tissue culture used to produce clones of a plantb)Method of determining the age of the treec)Production of multiples of plants in the absence of seedsd)Alteration of the genome of a plant by the addition of new genetic materialCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of The term Dendrochronology denotesa)Method of Plant tissue culture used to produce clones of a plantb)Method of determining the age of the treec)Production of multiples of plants in the absence of seedsd)Alteration of the genome of a plant by the addition of new genetic materialCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice The term Dendrochronology denotesa)Method of Plant tissue culture used to produce clones of a plantb)Method of determining the age of the treec)Production of multiples of plants in the absence of seedsd)Alteration of the genome of a plant by the addition of new genetic materialCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice UPSC tests.
Explore Courses for UPSC exam

Top Courses for UPSC

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev