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Posted by Ritesh Sharma 5 years ago (10368258)
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Posted by Student Of Class 10 5 years ago (10371244)
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Reema Janu 5 years ago (10208162)
Secret ??? 5 years ago (10356051)
Jagrati Sharma 5 years ago (10286435)
Posted by Student Of Class 10 5 years ago (10371244)
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Jagrati Sharma 5 years ago (10286435)
Posted by Aman Deep 5 years ago (10289659)
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Chander Dev Chaudhary 4 years, 11 months ago (8305597)
Posted by Tanya M 5 years ago (9282730)
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Secret ??? 5 years ago (10356051)
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Posted by Pawan Yadav 4 years, 2 months ago (10308164)
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Posted by Sakshi Shah 5 years ago (10374820)
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Anupama Samantaray 5 years ago (10220972)
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Posted by Chanchal Kumari 5 years ago (3354015)
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Hashini N 5 years ago (10254466)
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Posted by Shadab Mansoori 5 years ago (7262219)
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Vansh Sobhani 5 years ago (3761947)
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Posted by Banarasiya Don???? 5 years ago (8953837)
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Posted by Pragati Kaushik 5 years ago (7728369)
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Meghna Thapar 5 years ago (6237)
Tropical evergreen forests are dense, multi-layered, and harbour many types of plants and animals. These forests are found in the areas receiving heavy rainfall (more than 200 cm annual rainfall). They are very dense. Even the sunlight does not reach the ground. Two characteristics of tropical evergreen forests are that they always appear green as all the trees do not shed their leaves at the same time. Secondly, these forests are dense and the trees are more than 60 m in height.
Posted by Yuvi Tyagi 5 years ago (10363370)
- 1 answers
Gaurav Seth 5 years ago (2898529)
Employees may not adjust according to the rules and regulations of the company The new employees may not adjust themselves as per the rules and regulations of the organisation which means more chances of employee turnover.
Posted by Student Of The Year 5 years ago (8440771)
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Posted by Shubhansh Kumar 4 years, 7 months ago (10183126)
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Sia ? 4 years, 7 months ago (6945213)
+1 ions : Ammonium, Cesium, Copper, Ethyl, Francium , Gold, Hydrogen, Lithium, Mercury, Potassium, Rubidium, Sodium
+2 ions: Ba+2, Beryllium, Cadmium, Calcium, Cobalt, Copper, Gallium, Iron, Lead, Magnesium, Mercury, Polonium, Radium, Titanium, Ytterbium, Zinc
+3 ions : Al+3 ; Sb+3 ; Bi+3 ; Co+3 ; Ga+3 ; Au+3 ; Fe+3 ; Y+3
+4 ions: Pb+4 ; Po+4 ; Si+4 ; Ti+4 ; Zr+4
+5 ions: Sb+5 ; Bi+5
+6 ions: Po+6
+7 ion : Mn+7
4- ions : Ferrocyanide[ Fe(CN)6 ]4-, Pyrophosphate [P2O7] 4-, Silicate [SiO4] 4-, Silicide Si4-
3- ions : Antimonide Sb3-, Arsenate [AsO4] 3-, Arsenide As3-, Borate [BO3] 3-, Boride B3-, Citrate [C6H5O7] 3-, Hypophosphite [PO2] 3-, Nitride N3-, Perphosphate [PO5] 3-, Phosphate [PO4] 3-, Phosphide P3-, Phosphite [PO3] 3-
2- ions : Carbonate [CO3] 2-, Dichromate [Cr2O7] 2-, Hydrogen Phosphate [HPO4] 2-, Molybdate [MoO3] 2-, Oxalate [C2O4] 2-, Oxide O2-, Percarbonate [CO4]2-, Peroxide [O2] 2-, Tellurite [TeO3] 2-, Thiosulfate [S2O3] 2-, Titanate [TiO3] 2-
1- ion : Acetate, Aluminate, Bromate BrO3-, Bromide Br-, Bromite BrO2-, Chlorate ClO3-, Chloride Cl-, Chlorite ClO2-, Chromate CrO4-, Cyanate OCN-, Cyanide CN-, Dihydrogen Phosphate H2PO4-, Dihydrogen Phosphite H2PO3-, X-, thiocyanate, permanganate
Posted by Bhumika Jaiswal 5 years ago (9565070)
- 2 answers
Gaurav Seth 5 years ago (2898529)
Jadidists were Muslim reformers within the Russian empire who wanted modernized Islam to lead their societies. They supported the liberals of Russia who campaigned against the autocracy of the Tsar and demanded a constitution during the 1905 revolution. They gave prime importance to education and focused on the social upliftment of women. They echoed the opinion of the public through new forms of media like newspapers and magazines.
Posted by Sanchita Nayak 5 years ago (10374618)
- 5 answers
Posted by Roshani Singhal 5 years ago (10304953)
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Jasleen Kaur 4 years, 11 months ago (9135240)
Posted by Bhumika Jaiswal 5 years ago (9565070)
- 2 answers
Gaurav Seth 5 years ago (2898529)
Separate the sublimating substance (Naphthalene / Anthracene / Camphor / Ammonium chloride) from the mixture through the process of sublimation.To start sublimation, click on the 'Start Sublimation' button.To heat the mixture in the china dish, drag the china dish over the Bunsen burner.
Hence to separate a volatile compound (sublimate) from a non-volatile compound (non-sublimate), the sublimation process is used.
In a China dish the mixture is kept, and is placed on a stand. An inverted funnel is kept over the mixture in China dish with plugged stem. The sublimate on heating gets collected on the funnel and common salt remains in the China dish.
Posted by Bhumika Jaiswal 5 years ago (9565070)
- 1 answers
Gaurav Seth 5 years ago (2898529)
ANSWER
Water is a compound and a compound forms whenever two or more atoms atoms form chemical bonds with each other. The chemical formula for water is H 2 O which means each molecule of water consists of one oxygen atom chemically bonded to two hydrogen atoms.
Posted by Saumya Soni 5 years ago (10069087)
- 2 answers
Posted by Taniya Tanwar 5 years ago (10361883)
- 1 answers
Md. Ali 5 years ago (8399320)
Posted by Pratham Makawan 5 years ago (9824492)
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Gaurav Seth 5 years ago (2898529)
The particles in these fluids can move from place to place. Convection occurs when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy. Heat energy is transferred from hot places to cooler places by convection. Liquids and gases expand when they are heated.
Posted by Arun Kushwah 5 years ago (9295678)
- 1 answers
Gaurav Seth 5 years ago (2898529)
Hybridisation is defined as the process of interbreeding between two genetically divergent individuals or two individuals of different species. Therefore, the statement (i) is correct.
Interspecific hybridisation means cross mating between two different species but sharing same genera. For example, a cross breed between a lion and a tiger, they both are from same genus Panthera but different species. So the statement that cross between two varieties is called interspecific hybridisation is wrong.
I am a brinjal farmer, my brinjals are being infected by some beetles every year. I spend a huge sum of money on insecticides and pesticides to protect my crop. Then, a biotechnology company approaches me with a new strain or variety of brinjal plants which have the capability to produce a natural pesticide that makes it resistant to the beetles. My crop is not only saved, but I also get good yield of brinjals now and earn a lot of money. I do not have to spend extra money on pesticides and insecticides. Basically, I got a brinjal plant with gene of desired character and got a desired genetically modified brinjal plants. Therefore, the statement (iii) is correct.
When the parent plants cross bred are from the same species, but of different variety is called intervarietal hybridisation. For example, a cross bred between two different varieties of wheat plant. They belong to the same species but they are of different variety. Therefore, the statement (iv) is wrong.
Hence, we can conclude that (i) and (iii) are correct statements.
Posted by Sakshi Pal 5 years ago (9949440)
- 2 answers
Vaishnavi Tyagi 5 years ago (8447301)
Gaurav Seth 5 years ago (2898529)
Answer: Melting of ice is a reversible change. Water can be turned into ice by keeping it in the freezer. When ice cubes are kept at room temperature, they turn into water after some time. On the other hand, burning of a piece of paper is an irreversible change. When a piece of paper is burnt, it turns into ash. The ash cannot be turned back into paper. Hence, it is an irreversible change.
Posted by Saba Yasmeen Kamdod 5 years ago (10205234)
- 1 answers
Gaurav Seth 5 years ago (2898529)
The easy experiment to demonstrate magnetic field lines is by the use of iron filings.
- Place a bar magnet above a write paper on a table.
- Using a compass mark the direction of the needle.
- Spray iron filings on the paper and tap slightly.
- Iron filings are arranged themselves in the same pattern as we drew.
- These are the magnetic field lines.
Properties
- Field lines form closed loops
- They do not cross each other
- Density of field lines reduces with increase in distance from the poles
Posted by Arun Kushwah 5 years ago (9295678)
- 1 answers
Gaurav Seth 5 years ago (2898529)
Hybridisation is defined as the process of interbreeding between two genetically divergent individuals or two individuals of different species. Therefore, the statement (i) is correct.
Interspecific hybridisation means cross mating between two different species but sharing same genera. For example, a cross breed between a lion and a tiger, they both are from same genus Panthera but different species. So the statement that cross between two varieties is called interspecific hybridisation is wrong.
I am a brinjal farmer, my brinjals are being infected by some beetles every year. I spend a huge sum of money on insecticides and pesticides to protect my crop. Then, a biotechnology company approaches me with a new strain or variety of brinjal plants which have the capability to produce a natural pesticide that makes it resistant to the beetles. My crop is not only saved, but I also get good yield of brinjals now and earn a lot of money. I do not have to spend extra money on pesticides and insecticides. Basically, I got a brinjal plant with gene of desired character and got a desired genetically modified brinjal plants. Therefore, the statement (iii) is correct.
When the parent plants cross bred are from the same species, but of different variety is called intervarietal hybridisation. For example, a cross bred between two different varieties of wheat plant. They belong to the same species but they are of different variety. Therefore, the statement (iv) is wrong.
Hence, we can conclude that (i) and (iii) are correct statements.
Posted by Shivi Verma 5 years ago (10294703)
- 4 answers
Kiran Kumari 5 years ago (10352018)
Bhoomika Verma 5 years ago (9985395)
Hari Prasath 5 years ago (4014405)
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