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1501.

Classify plastids and give function of each type

Answer»
1502.

What does negative acceleration means

Answer» Retardation
The negative accleration means retardation
1503.

Particles of matter are continuously in motion.why?

Answer»
1504.

Why did liquid occupy space least than solid

Answer» Liquids occupy space mor least because the atoms and molecules in gases are much more spread than in liquids or solids. They vibrate and move freely at high speeds. A gas will fill any container, but if the container is not sealed, the gas will escape. Gas can be compressed much more easily than a liquid or solid.
1505.

Liquid has lower dencity then solid but ice floats on water .why

Answer» Ice has cage like structure and due to which the particle are a very far apart,thus,it occupies greater volume,as a result the density of the ice decreased and Hence ice floats on water.
1506.

Can anyone tell me syllabus of 9 classs of CBSE tx

Answer» Full portion
1507.

Which pigmentis present in chloroplast?

Answer» Chlorophyll
Chlorophyll
Chlorophyl
Chlorophyll
1508.

What is latent heat??

Answer» The heat required to change the state of a substance by breaking the bonds of molecules is called latent heat
Latent heat is the hidden heat required to change the states???
Latent heat is a hidden heat which can change the state of a substance without rising its temperature
Hidden heat
1509.

What are the characterisitcs of matter

Answer» It occupies space It has mass
Matter are of three states -solid,liquid,gas
Matter were always moving
Matter have small particles between them ,matter attract each other ,
Matters are very small
1510.

5 uses of motion in our daily lives

Answer» Walking, dancing, playing, riding a bike, riding a cycle ???
1511.

Which gas diffuses rapidly : methane or carbon di oxide? Give reason also

Answer» Methane diffuses fast as compared to carbon dioxide because molecular mass of methane is 16 and molecular mass of carbon dioxide is 44 and we know that light particles diffuses fastly. so, methane diffuses rapidly.
1512.

What is tri point

Answer»
1513.

Why do gases and liquids flow?

Answer» Bcz there there particles are apart
Because there are very less forces of attraction
1514.

How many hours the cbse 9th std should study

Answer» Many more 5 hrs
3 and half an hour
Please send the answers quickly
1515.

How to make a Animal cell model

Answer»
1516.

why aee lysosomes known as \'suicide -bags\' of cell

Answer» Lysosomes are called as the suicide facts of the cells because any part of a cell or even the cell gets damage the lysosome bursts and releases the lysosomal enzymes which digest the damaged part of the cell and prevent more damage to other cells
Because they eat bacteria and viruses which causes disease to our body. So Lysosome are callad ...........…
1517.

A can be liquefied by

Answer»
1518.

Difference between uniform and nonuniform

Answer» Uniform motion :- A moving body covers equal distances in equal interval of time .Non uniform motion:-when a moving body covers unequal distances in equal interval of time.
1519.

List of five objects that can be electroplated

Answer» Spoon, iron,
1520.

List various advantages of division of labour in cells

Answer»
1521.

Practicle of onion

Answer»
1522.

What is difine acceleration

Answer» Any motion in which change of magnitude/direction is called........,........
rate of change of velocity called acceleration
1523.

Why is lysomcs is called sucide bags?

Answer» Lysosomes have hydrolytic enzymes in them which can digest some of the cll organelles..causing the death of the particular cell
Lysosomes may burst enzymes digest their cell,therefore lysosomes are called sucide bags
Because our body contains many harmful bactria when we infected by any desease then lysosome eat all the harmful bacteria and end them then lysosomes called suicidal bags.............
1524.

What do you mean by acceleration of 5 M per second

Answer»
1525.

Solution

Answer» Of what?
1526.

Motion along a straight line

Answer» Rectilinear motion,,,,motion in one dimension,,,,,,linear motion
Uniform motion
1527.

Diffrence between G and g. It is chapter gravitation

Answer» G universal gravitational constant g acceleration due to gravity
1528.

Name two cells which keep changing their shape

Answer» Loda
The two cells that keep changing in their shape are amoeba and white blood cell
1529.

Sciebce

Answer» Ory mistake
Answer tell me
I want to know the answer of the question paper of science sa1 of class ninth ,year 15 -16 ,16-17,17-18
1530.

How do storage grain lasses occur

Answer»
1531.

We have learned hypertonic solution.But a fish in ocean does not get shrink Why ?

Answer» a hyertonic solution is a solution which contains less water and more solute so that ocean has more quantity of water and less of salt the fish does not shrink.
1532.

Describe three factor which affect boiling point of a liquid

Answer» PressureTemperatureHumidity
Pressure is the main factor
100
1533.

What is the difference between nucleoid and nucleus

Answer» The nucleus is a membrane-bound organelle within the cytoplasm where the genome is housed in a eukaryote. The nucleoid region is just the spot in the cytoplasm of a prokaryotic cell where the genome happens to be hanging out -- the genome is not separated from the rest of the cytoplasm by any membrane.
1534.

10 phenomenon of evaporation and latent heat

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1535.

Is fans are in motion

Answer»
1536.

What is the experiment to show that solid have fixed shape and fixed volume?

Answer» Take a solid object can you press that object and u add something
1537.

How cell is discovered by Robert Hooke came into book point

Answer» While observing a cork cell under his microscope
1538.

Circular motion

Answer» Move in circle
Motion
Angular mation
1539.

name the tissue present in the bark of a tree?

Answer»
1540.

Explain whether rhe walls of a classroom are at rest or in motion

Answer» The walls of classrooms are in rest in respect to the people present there but it is in motion with respect to space because of the is moving
It is at rest for a person who is standind in a play ground and in motion to see from the space because the earth is rotating around the sun
1541.

why uniform circular motion is called accelerated motion

Answer» As it is continuously changing its direction
1542.

What will be the graph for uniform retardation???

Answer»
1543.

Define chromatography

Answer»
1544.

586K is how many c

Answer» 586-273=313
1545.

Who is digestive food

Answer»
1546.

Why do we see water droplets on the outer surface of a glass containing ice cold water

Answer» We see water droplets on outer surface of glass containing ice cold water because it has lesser tempratre than that of air so when air hits glass its tempratre decreases and air comes to state of water which stick on outer surface of glass.
1547.

Letter in Hindi apne chacha ji ko apne vidhalya me amantrit

Answer» First write your uncle address ,dateThen write dear uncle Next step write you are good here and then start body of the letter ,then tell why you want invite him and what you are doing in that matter ,and then write you will happy to see him ...end the letter
1548.

Name 3 functional regions of the cell. Also write the component of each.

Answer» Gogli apparatus ,nucleus,cytoplasm
1549.

How co2 is essential for photosynthesis

Answer» Water+sunlight+carbon dioxide--glucose+oxygen
Because it takes inside co2 and releases oxygen by the process of photosynthesis
1550.

How sunlight is essential for photosynthesis

Answer» It makes the chloroplast active