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Keratin is a compound of which they are MADE . It is WASTE PRODUCT for our BODY

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Finkelstein REACTION => The Finkelstein reaction (OFTEN REFERRED to as a halex reaction or halogen EXCHANGE) named after the German chemist Hans Finkelstein, is an SN2 reaction (Substitution Nucleophilic Bimolecular reaction) that involves the exchange of one halogen ATOM for another.

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Leatherback sea turtle

The leatherback sea turtle (Dermochelys coriacea), sometimes called the lute turtle or LEATHERY turtle or simply the luth, is the largest of all living turtles and is the fourth-heaviest modern reptile behind three crocodilians.[4][5] It is the only living SPECIES in the genus Dermochelys and family Dermochelyidae. It can easily be differentiated from other modern sea turtles by its lack of a bony shell, hence the name. Instead, its carapace is covered by skin and oily flesh. Dermochelys is the only extant genus of the family Dermochelyidae.

Walking Shark

there is a shark that can walk on LAND. The incredible epaulette shark is not only a perfectly capable swimmer, but it can also “walk” between coral heads at low tide, along the seafloor, and even on land when needed. For that REASON, it is often called the "walking shark."

लक्षणों को नियंत्रित करने वाली आधुनिक इकाई को कारक कहते है.

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(C) डीव्रीज, कॉरेन्स, शैरमेक is UR ANSWER.

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After locating contour POINTS smooth contour lines are drawn connecting corresponding points on a contour line. French curves may be used for drawing smooth lines. A surveyor should not LOSE the sight of the CHARACTERISTIC FEATURE on the ground.

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Udhan matar
option d is the ANSWER

Hey there....
The factors which AFFECT the rate of chemical REACTION are....
Q. 1.Nature of the reactants
2. Size of the particles of reactants
3. Catalyst
4. Temperature of the reaction
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A-salicylic ACID, B-salicaldehyde

(C)नजेली is your ANSWER

पेरीडर्म किससे सम्बन्धित है ?
(a) कार्क + कार्क केम्बियम +दूसरा वल्कुट √√√

(B) कार्क + कार्क केम्बियम
(C) कार्क से
(d) इनमे से कोई नही

लिग्निन का स्थूलंन कितने प्रकार का होता है ?
(a) 8
(b) 5
(c) 7
(d) 2

Answer :- 5

Using the formula,
Here, T is time period, R is ORBIT RADIUS 
G is gravitational CONSTANT and M_EME​ is mass of earth.

Given, 
M_EME​ = 4 × original mass of earth, 
= 4 × 5.92 × 10²⁴ kg 
Orbit radius , R = Earth's radius + height of satellite from Earth's SURFACE 
= 6400 km + 35780 km 
= 42180 km = 4.2180 × 10⁷ m 
G = 6.67 × 10⁻¹¹ Nm²/Kg² 

Now, T = 2π√{(4.2180 × 10⁷)³/(6.67 × 10⁻¹¹) × (4 × 5.92 × 10²⁴)} 
= 43309.8 sec 

So, T = 43309.8/3600 ≈ 12 hrs 

Hence, time to COMPLETE revolution by satellite is 12 hrs

In the CELL NEAR NUCLEUS

Water is an EXAMPLE of homogeneous mixture.

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Carbonisation is the TERM USED when complex carbonaceous substances such as WOOD or agricultural residues are broken down by heating into elemental CARBON and chemical compounds which MAY also contain some carbon in their chemical structure.



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Oxygen gas ,NITROGEN DIOXIDE gas and CO2 gas are compounds.
so right ans is WATER vapour.

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An electromagnet can be switched on and off to repeatedly strike the bell and RELEASE the HAMMER. A permanent magnet will strike the bell once and not let go.

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Hey MATES, here is your answer

1) STOMATA - transpiration
2)xylem - transpiration of water

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@KOSHA

(B) ESTROGEN is the RIGHT ANS ...

शरीर में हार्मोनो का संचरण रक्त और LYMPH दोनों से होता है

(a) पैराथाइराॅइड हार्मोन

वक्र में कैल्सियम के पुनः अवशोषण से संबंधित हार्मोन पैराथाइराॅइड हार्मोन है ।

(d) थाइराॅइड ग्रंथि की अतिसक्रियता

क्रेटीनिज्म रोग का थाइराॅइड ग्रंथि की अतिसक्रियता कारण है ।

⭐⭐⭐⭐⭐ ANSWER ⭐⭐⭐⭐⭐

❤ WHAT IS IONIC COMPOUND? ❤

➡ Ionic compound is the compound which is formed as a result of the transfer of electrons from ONE atom of an ELEMENT to one atom of anther element.

❤ CHEMICAL BOND FORMATION ❤

➡ The ionic or electrovalent bond is formed due to the electrostatic force of attraction between a cation and an anion.

❤ ANSWERS TO YOUR QUESTION ❤

1] NaCl (Sodium Chloride) , also known as common SALT adds a taste to food. It is a common ingredient for all TYPES of food.

2] CaCO3 (Calcium Carbonate), also known as limestone. Calcium carbonate (CaCO3), essentially, is an ionic compound having the bivalent calcium and carbonate ions.

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❤ HOPE EVERYTHING IS CLEAR TO YOU NOW

❤ FEEL FREE TO ASK MORE DOUBTS

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⭐⭐⭐ ALWAYS BE BRAINLY ⭐⭐⭐

METALLIC character:

• The tendency of an element to lose electrons and FORMS positive ions re metallic character.
• It is also called electropositive character.
• Increases down in the group.
• Decreases ALONG the period from LEFT to right.

Non-metallic character:

• The tendency of an element to ACCEPT electrons to form an anions re non-metallic characters
• It is also called electronegetive character.
• Decreases down the group.
• Increases along the period from left to right.

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The ANSWER is ethane.
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(B) चालक तंत्रिकाएं

सूचनाओं को सवेंदी अंगो से केंद्रीय तंत्रिका तंत्र तक चालक तंत्रिकाएं पहुँचाती है |

Your ANSWER ,