Q1. why are bacteria and fungi said to be decomposers ??
Q2. Give two ways in which bacteria are useful to us and as well as in which they're harmful to us.
Q3. Discuss five methods of food preservation.
Answers
Answer(a): Bacteria and fungi are called decomposers because bacteria and fungi break down the dead and decaying organic matter into simpler substances and provide the nutrients back to the soil. Advantages of decomposers to the environment: They act as natural scavengers.
answer (b)If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware.
If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices.
answer (c)Freeze. The colder a food is, the slower its rate of deterioration. ...
Freezing herbs. • Herbs in water can be frozen in ice cube trays. ...
Heat. ...
Boiling to make fruit preserves. ...
Use strong concentrations. ...
Pickling in vinegar. ...
Fermenting alcohol. ...
Exclude air.
Answer:
A1. Bacteria and fungi are said to be decomposers because they breakdown complex inorganic substances into simple organic substances.
A2. a- There are many good bacteria present in our body for breakdown of stuffs.
b- They help in cleaning of environment from dead and decaying matter.
Harmful
a- Bacterias which are not needed in our bodies can lead to infections and ailments.
b- Accumulation of bacteria in a large number may rise hygiene needs.
A3. -By boiling water.
-By preserving food stuffs in salt and oil.
-By storing food in refrigerators.
-By adding vinegar.
-By heating up of food.
Explanation:
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