Question
Discuss the factors which affect the rate of decomposition.
✓
Answer
Factors Affecting Rate of Decomposition Decomposition is largely an aerobic process, i.e. requires oxygen for its processing.The rate of decomposition is controlled mainly by the following two factors:
- Chemical composition of detritus The rare of decomposition is slower, if detritus is rich in lignin and chitin while, it is quicker if it is composed of nitrogen and water-soluble substances like sugars.
- Climatic factors Temperature and soil moisture are the most important climatic factors that controls decomposition.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Rohan saw Mr. Sharma collecting different plant specimens. He was confused to see him doing this collection and approached him asking about it.
Mr. Sharma told him that he will cross different plant specimens in his laboratory for obtaining better varieties of plants.
Mr. Sharma told him that he will cross different plant specimens in his laboratory for obtaining better varieties of plants.
- Why is he interested in such experiments?
- Name this technique.
- What precautions he should take while applying this technique?
- What values are shown by Rohan?
Write the formula for the change in population density.
What is natural selection? How is artificial selection different from natural selection? Give one example each from plants and animals where artificial selection has operated.
The image below shows two germinated seeds X and Y which belong to the same species. Seed X is produced by apomixis whereas seed Y is a product of sexual reproduction.
A. Write the number of embryo(s), embryo sac(s) and ovules in the ovary of seed X.
B. How multiples embryos are formed in citrus fruits?
C. What advantage will plants developed from seed Y have over seed X?
A. Write the number of embryo(s), embryo sac(s) and ovules in the ovary of seed X.
B. How multiples embryos are formed in citrus fruits?
C. What advantage will plants developed from seed Y have over seed X?
Gene therapy is an attempt to correct a genetic defect by providing a normal gene into the individual. By this the normal function can be restored. An alternate method would be to provide the gene product (protein/ enzyme) known as enzyme replacement therapy, which would also restore the function. Which in your opinion is a better option? Give reason for your answer.
Give any six features of the human genome.
Rearrange the following in the correct sequence to accomplish an important biotechnological reaction:
- In vitro synthesis of copies of DNA of interest.
- Chemically synthesised oligonucleotides.
- Enzyme DNA-polymerase.
- Complementary region of DNA.
- Genomic DNA template.
- Nucleotides provided.
- Primers.
- Thermostable DNA-polymerase (from Thermus aquatics).
- Denaturation of ds-DNA.
Explain the mode of action of ECORI.
Write critical notes on the following:
Groundwater depletion and ways for its replenishment.
Groundwater depletion and ways for its replenishment.
Many secondary metabolites of plants have medicinal properties. It is their misuse that creates problems. Justify the statement with an example.