(1)Why are forests called green Lungs of nature?
(2)What does LED stand for?
(3)Define reproduction. Why is it essential?
(4) What are the characteristics of image formed by a plane mirror?
(5)What is sludge? Write any two uses of sludge.
Answers
Answered by
3
- 1) Forests are known as green lungs of nature because it takes in carbon dioxide from the atmosphere and releases oxygen which is essential for our living and also thus purifies the atmosphere.
- 2) LED stands for Light Emitting Diode
- 3)The process of giving birth to young ones of their own kind is called Reproduction.It is essential to keep the continuity of their species and to ensure that they do not extinct.
- 4) Characteristics of images formed by a plane mirror. a) Laterally inverted
b) Erect and Virtual
c) Same size to that of the
object
d) Equal distance between the image and mirror as that of object to mirror.
- 5) Slugde is a organic waste collected from the bottom of sedimentation tanks of water treatment plant. Then can be dried and used as a manure in agricultural fields and can be used to make biogas for the production of electricity.
Answered by
23
1) 18% oxygen comes from Amazon forest.
1 acre plants observes Co2 from 250000 miles of car and give O2 for 18 persons for whole year
so forests are known as green lungs of nature
2) LED stands for LIGHT EMITTING DIODE
3)
organisms need energy for survival which they obtained from Life process such as nutrition and respiration. reproduction needs energy. genetic material is transferred from one generation to the next as a result of reproduction through DNA .DNA copying takes place with high constancy and considerable variations, that is, advantages to the species for stability in the changing environment .
4)the characteristics of image formed by a plane mirror are,
the image formed is virtual image. it is always upright. image formed is of the same size as the object . the distance from the mirror is always same as that of object .
5)sledging means a solid waste that is rich in organic matter like nitrogen , Phosphorus , in organic salts , and heavy metals .
plz mark it as brainliest
1 acre plants observes Co2 from 250000 miles of car and give O2 for 18 persons for whole year
so forests are known as green lungs of nature
2) LED stands for LIGHT EMITTING DIODE
3)
organisms need energy for survival which they obtained from Life process such as nutrition and respiration. reproduction needs energy. genetic material is transferred from one generation to the next as a result of reproduction through DNA .DNA copying takes place with high constancy and considerable variations, that is, advantages to the species for stability in the changing environment .
4)the characteristics of image formed by a plane mirror are,
the image formed is virtual image. it is always upright. image formed is of the same size as the object . the distance from the mirror is always same as that of object .
5)sledging means a solid waste that is rich in organic matter like nitrogen , Phosphorus , in organic salts , and heavy metals .
plz mark it as brainliest
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