Why, Oh Why?

A wooden boat

in water will float.

But a needle will sink!

Why does this happen? Let me think...

An iron ship will also float,

though its’ much heavier than my boat!

But a needle,

light as a leaf,

thin as a pin,

will sink right in!

Why does this happen?

Let me think...

– Shishir Shobhan Ashthana Chakmak, December 1985 (Translated by Anupa Lal)

PRIVATE SECTOR ENTERPRISES

The private sector consists of business owned by individuals or a group of individuals. The varios forms of organisation are- sole proprietorship, partnership, joint hindu family, cooperative and company.

PUBLIC SECTOR ENTERPRISES

Meaning: The public sector consists of various organizations owned and managed by central or State or by both governments. The govt. participates in economic activity of the country through these enterprises.

FEATURES:

1. Capital is contributed by central or state or both govts.
2. Public welfare or Service is the main objective.
3. Management & control are in the hands of govt.
4. It is accountable to the public.

For more click on the given link:

<a data-ved="2ahUKEwiSo9jZ5ejtAhVGT30KHStlAWcQFjAAegQIAxAC" href="https://mycbseguide.com/blog/private-public-and-global-enterprises-class-11-notes-business-studies/" ping="/url?sa=t&source=web&rct=j&url=https://mycbseguide.com/blog/private-public-and-global-enterprises-class-11-notes-business-studies/&ved=2ahUKEwiSo9jZ5ejtAhVGT30KHStlAWcQFjAAegQIAxAC" rel="noopener" target="_blank">Private, Public and Global Enterprises class 11 Notes ...</a>

The reaction of custard was different from the others as he tried to deal badly with the pirate. ... on the other end, custard jumped in front of pirate and when the pirate missed his bullets, he then grapped him.

Answer:

• In birds and mammals have a double circulation system where both the oxygenated and deoxygenated blood maintains separate.
• Warm-blooded animals such as birds and mammals maintain constant body temperature by cooling themselves when they are in a hotter environment and by warming their bodies when they are in a cooler environment.
• Hence, these animals require more oxygen _(O2) for more cellular respiration so that they can produce more energy to maintain their body temperature.
• It is necessary for them to separate oxygenated and de-oxygenated blood so that their circulatory system is more efficient and can maintain their constant body temperature.
• It is also better if the oxygenated blood stays separate, as its combination with deoxygenated blood will impure the entire blood.

one sperm

Only one sperm fuses with the egg in oviduct to form Zygote. The fertilisation of egg take place in oviduct. 3)The zygote divides rapidly by mitosis as it moves down slowly in oviduct and form a hollow ball of hundred of cells(embryo).

Variations are important for species survival because variation causes the organism to overcome extreme situations. Organism species occupy well-defined positions in the ecosystem, utilizing their reproductive capacity.

Variation beneficial to the species

Even so, for factors beyond the control of the species, such locations will alter, and can even destroy the entire species. If any differences in all of these species were to be found in a few individuals, they would have a chance of surviving.

• Variations can be beneficial or harmful according to the ecological niche of the organism.
• A variation suitable for the particular niche is selected by nature in evolution. Thus variations are necessary for the survival of the species.
• Variation is important for the evolution of the species.

Vegetative propagation is practiced for growing some types of plants because of following advantages:

1. It helps to introduce plants in new areas where seed germination fails to produce mature plants due to changes in environmental factors and the soil.
2. It is a more rapid, easier, and cheaper method.
3. Produces identical quality as the parent.
4. Faster and more certain methods of propagation.

For example, Tuber of potato, the rhizome of ginger.

Natural vegetative propagation are

• Roots. New plants emerge out of swollen, modified roots known as tubers. …
• Leaves. Leaves of a few plants get detached from the parent plant and develop into a new plant.

Relative refractive index : Relative refractive index is the ratio of the speed of light in the medium 1 to the speed of light in medium 2. The value of absolute refractive index may be greater than or less than unity.


Absolute Refractive Index : Absolute refractive index is the ratio of the speed of light in vaccum to the speed of light in the medium. The value of absolute refractive index is greater than unity.

 

https://drive.google.com/file/d/1xJZXiG54S86WaxoreIdm2FFFX9fPs3qW/view?usp=drivesdk

Click on the link 

तस्वीरों में राष्ट्र: आपने फ्रांस और जर्मनी के उदाहरण में पढ़ा कि राष्ट्र की पहचान को सामान्यतया किसी चित्र द्वारा मूर्त रूप दिया जाता है; ताकि लोग राष्ट्र की मूर्त रूप में पहचान कर सकें। यह काम सबसे पहले 1870 में बंकिम चंद्र चटर्जी ने मातृभूमि की स्तुति में ‘वंदे मातरम’ गीत लिखकर किया। अवनींद्रनाथ टैगोर ने 1905 में भारत माता की एक तस्वीर बनाई जिसमें भारत माता को एक विशेष रूप देने की कोशिश की गई। अलग-अलग कलाकारों ने अलग-अलग तरीके से भारत राष्ट्र को प्रस्तुत करने की कोशिश की।

लोककथाएँ: कई विचारकों का मानना था कि लोककथाओं से पारंपिक संस्कृति की सही पहचान होती है। इसलिए कई नेताओं ने राष्ट्रवाद की भावना का प्रसार करने के लिए लोककथाओं का सहारा लिया।

राष्ट्रीय ध्वज: आज जो राष्ट्र ध्वज हम देखते हैं उसका विकास कई चरणों में हुआ है। स्वदेशी आंदोलन के दौरान एक तिरंगे (लाल, हरा और पीला) का प्रयोग हुआ था। इस झंडे में उस समय के आठ राज्यों के प्रतीक के रूप में कमल के आठ फूल बने हुए थे। इस पर हिंदू और मुसलमान के प्रतीक के रूप दूज का चाँद भी था। गाँधीजी ने 1921 तक स्वराज ध्वज का डिजाइन तैयार किया था। यह भी एक तिरंगा ही था (लाल, हरा और सफेद) जिसके बीच में एक चरखा था।

इतिहास की पुनर्व्याख्या: कई लोगों को लगता था कि अंग्रेजों ने भारत के इतिहास को तोड़ मरोड़कर पेश किया था। उन्हें भारत के इतिहास को भारतीय दृष्टिकोण से जानने की जरूरत महसूस हुई। वे चाहते थे कि भारत के सुनहरे अतीत को उजागर किया जाये ताकि भारत के लोग उस पर गर्व कर सकें।