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So that there is enough MARGIN for thetracks to EXPAND and contract due to the temperature changes. If that gap is not LEFT then the tracks might have ENORMOUS stress in them whileexpanding due to heat.
I hipe it's hekp U :-)

The COLOUR of copper sulphate SOLUTION changes when kept iron nails in this because iron is more reactive than the copper. Iron dislaces copper from CuSO4.
Fe + CuSO4 -> FESO4 + Cu

Hello DEAR i am tanwi and your answer is in down

1) it forms a new PRODUCT
2) heat of combustion
3) change of COLOUR
4) formation of precipitation
5) evolution of gas

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and please TRANSLET this word in HINDI ok

Two METALS which are both malleable and ductile are gold and SILVER.
(of a metal or other material) able to be hammered or pressed into shape without breaking or cracking.

Ductility is when a SOLID material stretches under TENSILE stress.

A material is BRITTLE if, when subjected to stress, it breaks without significant plastic deformation

4.no question answer-----The changing of color of a substance is not NECESSARILY an indicator of a chemical CHANGE. For example, changing the color of a METAL does not change its physical properties. However, in a chemical reaction, acolor change is usually an indicator that a reaction is occurring.

3.no question answer------When carbon dioxide is passed through lime water it turns milky due to the formation of water insoluble precipitate CaCO3. Still if excess of CO2 is passed it forms water solubleCalcium bicarbonate . Thus the SOLUTION remains clear.
see the picture please...

2.no question answer------When Iron nail (Ferrum) is dipped inCopper sulphate (CuSO4) there takes reaction between them andcoppersulphate change its color from blue to light green. This shows Iron ismore REACTIVE than Copper, it canreplace Copper from CuSO4. CuSO4 isin blue Color and FeSO4 is in lightgreen color.

please see the picture of my book

Because of PUBERTY their GROWTH OVERALL INCREASES

so basically what i know from my geo TEACHER, Water LOGGING occurs when there is too much water in a plant’s root zone, which then can decreases the oxygen available to the roots. while water lodging is when strong winds, heavy RAIN or wet soil causes the crop to loose balance making it fall over.

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Heya
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question:
GROUP DISCUSSION in which each STUDENT give her or his suggestion on recycling and reusing
using waste paper please URGENT and and with group discussion
ans:
-----------------------------------------------------------------------------------
h g U f d y f
d cy gkx

Because when we WASTE, we throw that PAPER which make dirty to our ENVIRONMENT. And then it DAMAGES our ECOSYSTEM.

In sprinkler system the pipes are connected with sprinklers and the water is SPRINKLED in the FIELD
and every plant get EQUAL RATIO of the water.

Crayfish and SPIDERS are not INSECTS you will be SHOCKED to hear spider is not an insect.

Actually it will not OCCUR in the HUMAN stomach it will occur in the reproductive organ of the women to take out the BABY they will L use stomach for operation please make me BRAINIEST please please please

group of tissues FORMS an organ which PERFORMS FUNCTIONS. like brain

group of organs form organ system. like nervous system

group of organ system forms an ORGANISM. like HUMANS

I THINK they are PARRALEL

It will DEFINITELY HELP you ..
if it then MARK it as BRAINLIEST ANSWER........

The primary functions of chromatin are 1) to package DNA into a more compact, denser shape, 2) to reinforce the DNA macromolecule to ALLOW MITOSIS, 3) to prevent DNA damage, and 4) to control gene expression and DNA REPLICATION. please mark me as brinlist

Hshhshxgdhd
uuejdhdhxghzjoshggshzxgdhuddjdhdJ

Your answer is......

Function of MITOCHONDRIA is....

The most prominent role of mitochondria are to produce the ENERGY currency of cell, ATP through RESPIRATION, And to regulate cellular metabolism..

Fermionic condensate is the name of sixth STATE of matter

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PLZ mark me as a BRAIN LIST

Plasma membrane ALLOWS only few and selected PARTICLES like AIR to ENTER the cell THEREFORE it is called a silectively permeable membrane.

The ANSWER is SUN ,candles, ARTIFICIAL, stars,MOON,fire

Ans of 3 the body should in CONTECT
.2- they should in diffrent temprature
ans no. 5- because mud REFLECT heat

Here is ur answer mate...
1) melting is point is a temperature for a substance on which it starts melting....
2) syrup of lemom is not STORED in iron pot because iron is REACTIVE metal... iron and syrup will REACT with each other and can be POISONOUS

Plastic is non BIODEGRADABLE substance..

Plastic is EITHER non-biodegradable or DEGRADE very SLOWLY.

I THINK then then the CURRENT will FLOW in OPPOSITE DIRECTIONS

Deforestation can have a NEGATIVE impact on the environment. The most dramatic impact is a loss of habitat for millions of species. Eighty percent of Earth's land animals and plants live in forests, and MANY cannot survive the deforestation that DESTROYS their homes. Deforestation also DRIVES climate change.Deforestation can have a negative impact on the environment. The most dramatic impact is a loss of habitat for millions of species. Eighty percent of Earth's land animals and plants live in forests, and many cannot survive the deforestation that destroys their homes. Deforestation also drives climate change.

Hi friend,
............
....................Here is your answer............
Chlorenchyma :-

1) In collenchyma chloroplast containing
parenchyma CELLS.

2) It has isodiamatric cells

3) Chlorenchyma cells are not interlocked.

4) This cell wall has soft uniformly thin cell wall.

Collenchyma :-

1) Chloroplast may be present or absent WITHIN the cell.

2) In TRANSVERSE SECTION the cell look elongated and ANGULAR .

3) By their ends walls the cells are interlocked.

4) This cell wall has hard unevenly thickened cell wall


I hope it helps u...If it helps u then please mark it as brainlest answer...

However, BIRDS, due to their unique respiratory system are more SENSITIVE to the effects of carbon monoxide than other animals are. Symptoms of poisoning may range from mild or MODERATE to SEVERE and can include: DEPRESSION. Vomiting.
Behavioral Effects of Carbon Monoxide on Animals and Man ...

Gravitational FORCE in moon occurs the ocean to generate TIDES and BULGE APPEARANCE of sea WAVES. That's why during full moon or new moon day, the oceans have very much tides..

We should AVOID plastic bag because it can DAMAGE nature
it kills us
cows eating it and DIEING so pls.... avoid it

☺❤☺❤HEY MATE YOUR ANSWER IS HERE.. .......☺❤☺❤☺❤☺

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Newspaper and news can play important role in the development of education in any country by using the news as a practical example of theory students are learning in books.

Such as if students are learning in COLLEGE and school about demonetization methods, disadvantages and advantages then TEACHERS can showcase the demonetization content from the newspaper. They can include how demonetizations effecting society and real-life examples.

The benefits of using the news as an example for students that they can understand better about the SUBJECT from the newspaper it’s because the news is trending and relate a various practical aspect of the classroom subjects.

Another example such as political SCIENCE students learns in 11th or 12th about the powers of prime minister in India.
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☺❤☺☺❤☺PLZZ MARK ME BRAINLIEST ☺❤☺☺☺

PRESSURE = FORCE exerted per unit area.

Force = 10 kg

Area = 1 m²

Pressure exerted = 10 kg / 1 m² = 10 kg / m²

1 kg / m² = 1 PASCAL

=> Pressure exerted by the box is 10 Pascals.

Human is very progressive and he has DEVELOPED a lot. in his development he left out the nature. he is in ego that he has such great progress and conquered the earth. in his progression he destructs the whole nature and destroyed their HABITAT. thus colonization is responsible for extinction of ANIMALS .

Malleability means the substance which has some PROPERTY of metal and some property of NON metal
at temperature at which any substance that melting is 0 degrees CELSIUS
graphite is known as a GOOD conductor of ELECTRICITY because because it allows electricity and heat to pass through it

Some of the possible changes are-
A. Bubbles of gases MAY start forming on the electrodes.
B. COLOUR of the SOLUTION MIGHT start changing.
C. Deposits of metals may be seen on electrodes.
It depends upon the kind of electrode and solutions used

The defect of eye in which nearby objects are seen clearly by the eye but FAR objects are not seen clearly called myopia.

Causes
1. The curvature of the SURFACE of eye LENS to be INCREASED due to its focal length decrease
2. The distance between eye lens ND retina to be increased

His WEIGHT WIL be 50×g

I don’t KNOW about you, but my grandma is the best.
She is hilarious and doesn’t REALLY care about too much anymore, so her life is all fun.
She doesn’t like to stress herself out, and she doesn’t want to work too much. She loves her Sudoku because it’s easier than crossword PUZZLES, and she USED to like to COOK until she discovered that salad is just as good as anything else.
She can’t hear too well anymore, so she slips out embarrassing comments about me and my family during dinners.
But honestly, my grandma is the most entertaining lady I know.
No other woman in your life will quite compare to your grandma. She’s the ultimate friend, and she always has the best advice to offer you. No girlfriend, best friend, aunt, niece or cousin will ever outdo your grandma.
The list of reasons as to why your grandma is the best never really ends, but here's a good start:

1.) Alveoli
2.)A= alveolar cavity
B= blood capillaries
3.) thin squamous epithelium
4.) alveoli are adapted to MAKE gas exchange in lungs , they give the lungs a LARGE SURFACE area.

The CRUST of the EARTH is CALLED the OUTERMOST LAYER of the earth