False. The integrated pest management system uses the effective practices and technologies for improving the productivities and increasing the sustainability. Use of resistant varieties, limited use of chemicals, alternate cropping, use of manure and use of chemicals after obtaining sufficient knowledge about them, etc. increase the crop productions.
Unconformity
Explanation:
The gap between the lower and upper limestone layer can be explained by the occurrence of an unconformity.
An unconformity is a break in stratigraphic record usually marked a prolong period of non-deposition or erosion.
A major break of several millions of years is called a hiatus. A minor break is a diastem.
- During a period of non-deposition, no materials are brought into the basin.
- This can last for several years until deposition resumes again.
- Such a prolonged period of non-deposition causes a break in stratigraphic record.
- At other times, stratigraphic records can be lost to erosion.
- Erosion entails the washing away of the earth.
- This will ultimately cause the loss of records between two strata till deposition resumes.
- In most strata, periods of non-deposition and erosion usually takes place hand in hand.
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Which of the following cells or tissues forms glands?
Cuboidal epithelial tissue