(1) Al1 cellular processes occur in water medium. (2) Water is general solvent for chemicals found in living World. They react only in dissolved state. Transport also occurs in dissolved state.
(1) Al1 cellular processes occur in water medium.
(2) Water is general solvent for chemicals found in living World. They react only in dissolved state. Transport also occurs in dissolved state.
Inorganic fertilizers containing phosphates and nitrates released into water bodies give out a lot of nutrition to phytoplankton. It causes eutrophication. Algal growth occurs tremendously. Decomposition of these algae makes the aerobic decomposers highly active which in turn causes depletion of disRead more
Inorganic fertilizers containing phosphates and nitrates released into water bodies give out a lot of nutrition to phytoplankton. It causes eutrophication. Algal growth occurs tremendously. Decomposition of these algae makes the aerobic decomposers highly active which in turn causes depletion of dissolved oxygen in water bodies. Lack of dissolved oxygen in water leads to death of aquatic animals, especially fishes, due to suffocation.
Lead compounds are added to petrol to reduce knocking, i.e., rapid combustion. Burning of this petrol leads to formation of lead halides (bromides and chlorides) which are emitted into air with exhaust. Lead inhalation causes anaemia and brain damage, lead poisoning which disturbs the nervous systemRead more
Lead compounds are added to petrol to reduce knocking, i.e., rapid combustion. Burning of this petrol leads to formation of lead halides (bromides and chlorides) which are emitted into air with exhaust. Lead inhalation causes anaemia and brain damage, lead poisoning which disturbs the nervous system, liver and kidney.
Majority of organisms are unable to use atmospheric nitrogen directly. Through the process of nitrogen fixation, free nitrogen of air is converted into ammonia and nitrate, which is taken up by plants. In plants, nitrate is converted into amino acids, nucleotides, proteins and other nitrogenous cot1Read more
Majority of organisms are unable to use atmospheric nitrogen directly. Through the process of nitrogen fixation, free nitrogen of air is converted into ammonia and nitrate, which is taken up by plants. In plants, nitrate is converted into amino acids, nucleotides, proteins and other nitrogenous cot1lpouncls. In the absence of nitrogen fixation process, these substances which are necessary for structural and functional growth of organisms, will not be formed.
We need an assembly of elected representatives or Parliament that exercises supreme authority on behalf of the people. the Parliament has following powers and functions: (i) Legislative powers: Parliament makes laws in a country. It is the reason for calling them legislatures. Parliament can make neRead more
We need an assembly of elected representatives or Parliament that exercises supreme authority on behalf of the people. the Parliament has following powers and functions:
(i) Legislative powers: Parliament makes laws in a country. It is the reason for calling them legislatures. Parliament can make new Laws, change existing laws. or abolish existing Laws and can make new ones in their place.
(ii) Executive powers: Parliament exercises control over the executive i.e., Council of Ministers. The Council of Ministers in a parliamentary democracy, is responsible to parliament (Lok Sabha in India)’ If Lok Sabha passes vote of no-confidence motion against the council of Ministers, all ministers including the prime Minister have to quit.
(iii) Financial powers: Parliament controls all the money that government has. It passes budget every year’ Public money can be spent only with the approval of the parliament.
(iv) Highest forum of discussion : Parliament is the highest forum of discussion and debate on public issues and national policy. Parliament can seek information about any matter.
(i) Legislative powers: Any ordinary law needs to be passed by both the Houses. But in case of a difference the final decision is taken in a joint session in which the members of both the Houses sit together. Because of the larger number of members, the view of the Lok Sabha is likely to prevail inRead more
(i) Legislative powers: Any ordinary law needs to be passed by both the Houses. But in case of a difference the final decision is taken in a joint session in which the members of both the Houses sit together. Because of the larger number of members, the view of the Lok Sabha is likely to prevail in such a meeting.
(ii) Financial powers: Lok Sabha exercises more powers in money matters. once the Lok Sabha passes the budget of the government or any other money related law, the Rajya Sabha cannot reject it. The Rajya Sabha can only delay it by 14 days suggest changes in it. The Lok Sabha may or may not accept these changes. (iii) Control over executive: The Lok Sabha controls the Council of Ministers. only a person who enjoys the support of the majority of the members in the Lok Sabha is appointed as the Prime Minister’ If a motion of ‘no confidence ‘is passed against the council of Ministers, all ministers including the Prime Minister hale !o quit. The Rajya Sabha does not have this power.
From above it is clear that the Lok Sabha is more powerful than the Raja Sabha. The reason for this is that the members of this house are elected directly by the people.
(a) Appointment of the prime Minister: (i) The President appoints the leader of the majority party or the coalition of parties that commands a majority in the Lok Sabha, as prime Minister. (ii) In case no single party or alliance gets a majority, the President appoints the person most likely to secuRead more
(a) Appointment of the prime Minister:
(i) The President appoints the leader of the majority party or the coalition of parties that commands a majority in the Lok Sabha, as prime Minister.
(ii) In case no single party or alliance gets a majority, the President appoints the person most likely to secure a majority support.
(b) Appointment of Council of Ministers:
(i) The President appoints other ministers on the advice of the prime Minister.
(ii) The Ministers are usually from the party or the coalition that has the majority in the Lok Sabha.
(iii) The Prime Minister is free to choose ministers, as long as they are members of Parliament.
List two ways in which water is useful to living organisms
(1) Al1 cellular processes occur in water medium. (2) Water is general solvent for chemicals found in living World. They react only in dissolved state. Transport also occurs in dissolved state.
(1) Al1 cellular processes occur in water medium.
See less(2) Water is general solvent for chemicals found in living World. They react only in dissolved state. Transport also occurs in dissolved state.
Mention one method by which living organisms influence the formation of soil.
Lichens secrete chemicals to dissolve minerals from rock surface, produce crevices where dust collects and mosses grow to form small amount of soil.
Lichens secrete chemicals to dissolve minerals from rock surface, produce crevices where dust collects and mosses grow to form small amount of soil.
See lessName the man made component which is responsible for the depletion of ozone layer.
Chlorofluorocarbon or CFC.
Chlorofluorocarbon or CFC.
See lessName the fertilizers whose excessive presence in water bodies results in algal growth. What is the consequence of eutrophication.
Inorganic fertilizers containing phosphates and nitrates released into water bodies give out a lot of nutrition to phytoplankton. It causes eutrophication. Algal growth occurs tremendously. Decomposition of these algae makes the aerobic decomposers highly active which in turn causes depletion of disRead more
Inorganic fertilizers containing phosphates and nitrates released into water bodies give out a lot of nutrition to phytoplankton. It causes eutrophication. Algal growth occurs tremendously. Decomposition of these algae makes the aerobic decomposers highly active which in turn causes depletion of dissolved oxygen in water bodies. Lack of dissolved oxygen in water leads to death of aquatic animals, especially fishes, due to suffocation.
See lessWhy are lead compounds are added to petrol? How is it harmful?
Lead compounds are added to petrol to reduce knocking, i.e., rapid combustion. Burning of this petrol leads to formation of lead halides (bromides and chlorides) which are emitted into air with exhaust. Lead inhalation causes anaemia and brain damage, lead poisoning which disturbs the nervous systemRead more
Lead compounds are added to petrol to reduce knocking, i.e., rapid combustion. Burning of this petrol leads to formation of lead halides (bromides and chlorides) which are emitted into air with exhaust. Lead inhalation causes anaemia and brain damage, lead poisoning which disturbs the nervous system, liver and kidney.
See lessWhy is life not possible on Venus and Mars?
The atmosphere on Venus and Mars planets of solar: system constitutes about 95-97% carbon dioxide. Life cannot exist in such a CO₂ rich atmosphere.
The atmosphere on Venus and Mars planets of solar: system constitutes about 95-97% carbon dioxide. Life cannot exist in such a CO₂ rich atmosphere.
See lessWhat will happen if nitrogen fixation does not take place?
Majority of organisms are unable to use atmospheric nitrogen directly. Through the process of nitrogen fixation, free nitrogen of air is converted into ammonia and nitrate, which is taken up by plants. In plants, nitrate is converted into amino acids, nucleotides, proteins and other nitrogenous cot1Read more
Majority of organisms are unable to use atmospheric nitrogen directly. Through the process of nitrogen fixation, free nitrogen of air is converted into ammonia and nitrate, which is taken up by plants. In plants, nitrate is converted into amino acids, nucleotides, proteins and other nitrogenous cot1lpouncls. In the absence of nitrogen fixation process, these substances which are necessary for structural and functional growth of organisms, will not be formed.
See lessWhy do we need a parliament?
We need an assembly of elected representatives or Parliament that exercises supreme authority on behalf of the people. the Parliament has following powers and functions: (i) Legislative powers: Parliament makes laws in a country. It is the reason for calling them legislatures. Parliament can make neRead more
We need an assembly of elected representatives or Parliament that exercises supreme authority on behalf of the people. the Parliament has following powers and functions:
See less(i) Legislative powers: Parliament makes laws in a country. It is the reason for calling them legislatures. Parliament can make new Laws, change existing laws. or abolish existing Laws and can make new ones in their place.
(ii) Executive powers: Parliament exercises control over the executive i.e., Council of Ministers. The Council of Ministers in a parliamentary democracy, is responsible to parliament (Lok Sabha in India)’ If Lok Sabha passes vote of no-confidence motion against the council of Ministers, all ministers including the prime Minister have to quit.
(iii) Financial powers: Parliament controls all the money that government has. It passes budget every year’ Public money can be spent only with the approval of the parliament.
(iv) Highest forum of discussion : Parliament is the highest forum of discussion and debate on public issues and national policy. Parliament can seek information about any matter.
Compare the powers of Lok sabha and Rajya sabha in india.
(i) Legislative powers: Any ordinary law needs to be passed by both the Houses. But in case of a difference the final decision is taken in a joint session in which the members of both the Houses sit together. Because of the larger number of members, the view of the Lok Sabha is likely to prevail inRead more
(i) Legislative powers: Any ordinary law needs to be passed by both the Houses. But in case of a difference the final decision is taken in a joint session in which the members of both the Houses sit together. Because of the larger number of members, the view of the Lok Sabha is likely to prevail in such a meeting.
See less(ii) Financial powers: Lok Sabha exercises more powers in money matters. once the Lok Sabha passes the budget of the government or any other money related law, the Rajya Sabha cannot reject it. The Rajya Sabha can only delay it by 14 days suggest changes in it. The Lok Sabha may or may not accept these changes. (iii) Control over executive: The Lok Sabha controls the Council of Ministers. only a person who enjoys the support of the majority of the members in the Lok Sabha is appointed as the Prime Minister’ If a motion of ‘no confidence ‘is passed against the council of Ministers, all ministers including the Prime Minister hale !o quit. The Rajya Sabha does not have this power.
From above it is clear that the Lok Sabha is more powerful than the Raja Sabha. The reason for this is that the members of this house are elected directly by the people.
Describe how Prime Minister and the Council of Minister appointed?
(a) Appointment of the prime Minister: (i) The President appoints the leader of the majority party or the coalition of parties that commands a majority in the Lok Sabha, as prime Minister. (ii) In case no single party or alliance gets a majority, the President appoints the person most likely to secuRead more
(a) Appointment of the prime Minister:
See less(i) The President appoints the leader of the majority party or the coalition of parties that commands a majority in the Lok Sabha, as prime Minister.
(ii) In case no single party or alliance gets a majority, the President appoints the person most likely to secure a majority support.
(b) Appointment of Council of Ministers:
(i) The President appoints other ministers on the advice of the prime Minister.
(ii) The Ministers are usually from the party or the coalition that has the majority in the Lok Sabha.
(iii) The Prime Minister is free to choose ministers, as long as they are members of Parliament.