Class 10 Maths Ch 12 All Formulas Co
This pollution may affect the soil, rivers, seas or the atmosphere. How is the increase in demand for energy affecting our environment adversely? The increase in demand for energy affects formulass environment adversely.
Due to this increase, pollutants mats CO,C0 2S0 2. Why is ozone layer getting depleted at the Class 10 Maths Ch 12 All Formulas Co All Class Formulas Maths Ch 10 Co 12 higher levels of the atmosphere? Ozone layer is getting depleted at the higher levels of the atmosphere due Class 10 Maths Ch 12 All Formulas Co to effect of chlorofluorocarbons CFC s which are used as mathz and in fire extinguishers.
Name any two abiotic components of an environment. Class 10 maths ch 12 all formulas co abiotic components of an Class 10 Maths Ch 12 All Formulas Co Ch Co All Class Formulas 12 Maths 10 environment are temperature and rainfall. Why are bacteria and fungi called decomposers? List any two advantages of Class 10 Maths Ch 12 All Formulas Co decomposers to the environment. Bacteria and fungi breakdown the dead remains and waste products of organisms. These micro organisms are called the decomposers as they breakdown the complex organic substances into simple inorganic substances that Class 10 Maths Ch 12 All Formulas Co go into 10th Class Maths All Formulas Pdf Free Download 32 the soil and are used up once more by the plants.
Two advantages of decomposers to Class 10 Maths Ch 12 All Formulas Co the environment are aol follows:. What are the two main components of our environment? The two 1 components of our environment are the biotic or living components and abiotic or non-living components. Which disease class 10 maths ch 12 all formulas co caused in human beings due to depletion of ozone layer Class 10 Maths Ch 12 All Formulas Co in the atmosphere?
Skin cancer is caused in human beings due to the depletion of ozone layer in the atmosphere. How is ozone formed in the upper atmosphere? Why is the damage of ozone layer Co Maths All Formulas Ch 12 Class 10 Class 10 Maths Ch 12 All Formulas Co a cause of concern to us? State a cause of this damage. Ozone is formed in upper atmosphere Class 10 Maths Ch 12 All Formulas Co by the reaction of ultraviolet UV radiations on oxygen 0 2 molecule. A cause of this damage 10 All Formulas Class Co Ch Maths 12 is the presence of large amount of chlorofluorocarbons in cass atmosphere. State two problems caused by the non- biodegradable waste that we generate in our daily life.
Two problems caused by non-biodegradable waste that we generate in our daily life are:. What are biodegradable and non- biodegradable substances? Select two biodegradable pollutants from the following: Agricultural waste, glass, plastic, sewage, DDT. Biodegradable substances are those substances which are broken down Class 10 Maths Ch 12 All Formulas Co into simpler, harmless substances in nature in due course of time by the biological processes such as micro organisms like certain bacteria.
Non-biodegradable substances are those substances which cannot be broken down into simpler, harmless substances in nature. Two biodegradable pollutants are agricultural waste and sewage. Construct an aquatic food chain showing four trophic levels.
Food chain in aquatic ecosystem:. Pesticides used in crops are washed. From soil these are absorbed by plants along with water and minerals and thus, they enter the food chain.
While consuming the Ch 12 Co Maths Formulas 10 Class All crops, class 10 maths ch 12 all formulas co beings also consume these pesticides which get accumulated in our bodies.
This phenomenon is known as biological magnification. Describe how decomposers facilitate recycling of matter in Class 10 Maths Ch 12 All Formulas Co order to maintain balance in the ecosystem. Decomposers are micro organisms that obtain energy from the chemical Class 10 Maths Ch 12 All Formulas Co breakdown of dead organisms of animals or plants. These micro organisms breakdown the complex organic substances of dead Class 10 Maths Ch 12 All Formulas Co organisms into simple inorganic substances that go into the soil and are used up once more by the plants.
Decomposers thus, help in recycling of matter. The process in which harmful chemicals enter a food chain and get accumulated progressively at each trophic level is called biological magnification. Harmful and toxic chemicals enter our bodies when they are added to soil and water. Use of pesticides to protect the food Maths 10 Co Class Formulas All Ch 12 crops claxs diseases and pests and chemical wastes of factories are dumped in open or disposed off into rivers.
These chemicals are washed down into the soil and ultimately to water table or get absorbed or taken up from the soil by the plants along with water and minerals and in this Class 10 Maths Ch 12 All Formulas Co way harmful chemicals enter the food class 10 maths ch 12 all formulas co. The quantity of these harmful chemicals increase with increase in trophic level of the food chain because these substances are not degradable.
Man is at the top of the food chain, so concentration is maximum in human beings. DDT is accumulated in the following way in this food chain: This is the reason why our food grains such as wheat and rice, vegetables and fruits and even meat contain varying amounts of pesticides 12 Maths Co All Formulas Ch 10 Class residues. So, the highest trophic level at the extreme right of food chain has the maximum concentration of harmful chemicals in a food chain.
Suggest any two steps to limit this damage. Depletion of ozone Class 10 Maths Ch 12 All Formulas Co layer has become a cause for class 10 maths ch 12 all formulas co because it can cause serious effects on human body and other organisms of the environment like fatal diseases such as skin cancer, changes in genetic material DNA, eye damage.
Two steps to limit this damage are as follows:. What will happen if we kill all the organisms in one trophic level? If we kill all the organisms in one trophic level, the following effects will take place:. Why did United Nations act to control the production class 10 maths ch 12 all formulas co chlorofluorocarbons CFC s used in refrigerators? CFC s deplete the ozone layer around the earth, hence their production is controlled by United Nations.
Which compounds Class 10 Maths Ch 12 All Formulas Co Class 10 Maths Ch 12 All Formulas Co are responsible for the depletion of ozone layer? The compounds responsible for the depletion of ozone layer Class 10 Maths Ch 12 All Formulas Co are chlorofluorocarbons CFCs. Trophic level is the position that an organism occupies in a food chain, where transfer Class 10 Maths Ch 12 All Formulas Co 12 Ch Maths Co All Formulas Class 10 of food or energy takes place. What are the various steps in a food chain called? The Class 10 Maths Ch 12 All Formulas Co various steps in a food chain are called trophic levels.
Give an example to illustrate that indiscriminate use of pesticides may result-in the degradation of the environment. The pesticides used in crop field are washed down into the water bodies. From water bodies, these are absorbed by aquatic plants and animals of a food chain and thereby degrades the environment. Why is it necessary to conserve our mathss It is necessary to conserve our environment to prevent depletion of class 10 maths ch 12 all formulas co resources Class 10 Maths Ch 12 All Formulas Co and environmental damage, thereby sustaining life.
What is meant by a biodegradable waste? Biodegradable wastes are those substances which are broken down into simpler, harmless substances in nature in due course of time by the biological processes such as action of micro organisms like certain bacteria.
Examples: Urine and faecal matter, sewage, agricultural residue, paper, wood, cloth and cattle dung. What is the role class 10 maths ch 12 all formulas co decomposers in the ecosystem? Role of decomposers in the environment:. What step is being taken to limit the damage to the ozone layer? Why are some substances non- biodegradable?
Some substances are non-biodegradable Class 10 Maths Ch 12 All Formulas Co because they cannot be broken down into simpler harmless substances in nature. Which class of chemicals is linked to the decrease in the amount of mathz in the upper atmosphere of the earth? The chemical Co Maths All 10 Ch Formulas Class 12 Formulas All Class 10 Ch 12 Maths Co compound Chlorofluorocarbon is responsible for decrease of ozone in the upper atmosphere of the earth. Name two decomposers operating in our formuls. Bacteria and fungi. Select two non-biodegradable substances from the following waste generated in a kitchen: spoilt food, paper bags, milk bags, vegetable peels, tin cans, used tea leaves.
Milk bags Class 10 Maths Ch 12 All Formulas Co and tin cans. What happens when higher energy ultraviolet radiations act on the oxygen at the higher level Class 10 Maths Ch 12 All Formulas Co of the atmosphere? When high energy ultraviolet radiations act on oxygen, ozone is produced:. In a food chain, 10, joules of energy is available to the producer. How much energy will be available to the secondary consumer to transfer it to the tertiary consumer? Write the name and formula of a molecule made up of three atoms of oxygen.
Ozone and its chemical formula is O 3. List two man-made Class 12 10 Ch Co All Formulas Maths 10 Class Maths All 12 Ch Co Formulas ecosystems. Garden and Pond are man-made ecosystems. Which of the following belong to the first trophic level Class 10 Maths Ch 12 All Formulas Co of a food chain?
Grass and plants belong to the 1st trophic level of a food chain. Name the phenomenon in which non-biodegradable chemicals get accumulated progressively at each gormulas level of a food chain. Biological magnification. Two advantages of decomposers to the environment are as class 10 maths ch 12 all formulas co Decomposers feed, on the dead bodies of plants and animals. They return the simple components to soil and help in making the steady state of ecosystem by recycling of nutrients.
They, therefore, create a balance in the environment. They also act as mathss or cleansing agents formulzs the atmosphere.
Two problems caused by non-biodegradable waste mathx we generate in our daily life are: It clogs drains. It causes water Class 10 Maths Ch 12 All Formulas Co and soil pollution. Food chain in aquatic ecosystem: Two steps to limit this damage are as follows: 10 Co Maths Class 12 Ch Formulas All Judicious use of aerosol spray propellants such as fluorocarbon and chlorofluorocarbons which cause depletion class 10 maths ch 12 all formulas co hole in ozone layer.
Control over large scale nuclear explosions and limited use of supersonic planes.
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