Answer to the following questions:
1. What is friction?
2. On what principle do ball bearings work?
3. What are weeds?
4. What is hybridization?
5. What is pasteurization?
6. Name the different types of microorganism?
7. What are fossil fuels?
8. What is biodiversity? 7
9. Define deforestation?
10. What is menstruation?
Answers
Answer:
weeds
Explanation:
The unwanted plants which grow along with the crop
Answer:
1.
Friction is the resistance to motion of one object moving relative to another. It is not a fundamental force, like gravity or electromagnetism.
2.
A ball bearing works on the principle that rolling friction is less than sliding friction. It helps in reducing friction between two surfaces in contact and maintaining separation between the bearing races, thereby allowing minimal surface contact between two surfaces.
3.
A weed is a plant considered undesirable in a particular situation, "a plant in the wrong place". Examples commonly are plants unwanted in human-controlled settings, such as farm fields, gardens, lawns, and parks.
4.
the process of an animal or plant breeding with an individual of another species or variety.
5.
the partial sterilization of a product, such as milk or wine, to make it safe for consumption and improve its keeping quality.
6.
Microorganisms are divided into seven types: bacteria, archaea, protozoa, algae, fungi, viruses, and multicellular animal parasites ( helminths ).
7.
A natural fuel such as coal or oil, that was formed millions of years ago from dead animals or plants in the ground.
8.
Biodiversity is the variety and variability of life on Earth.
9.
cutting down trees over a large area is called deforestation.
10.
The menstrual cycle is the regular natural change that occurs in the female reproductive system that makes pregnancy possible.
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