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Answer:

Because the TOY has been broken so you can use ANOTHER thing using the toy wheel PLASTIC etc I hope that my answer is correct and you can MARK me BRAINLEST

ANSWER:

Option . C

Explanation:

AIR moves to EVAPORATE water which then condenses on COOLER layer. This answer is based on water cycle

Answer:

5. SODIUM chloride

4. 20g

3. aqueous

1. COMMON SALT in water

2. 13.4%

ANSWER:

HANDS of a prey bird is CALLED CLAWS

Explanation:

The 4Cs listed are COMMUNICATION, collaboration, critical thinking, and creativity. All four of these ITEMS are essential INSIDE the 21st Century CLASSROOM. These COULD be the 4Cs for any century classroom as all of these skills are timeless and highly valued not only inside the classroom, but in all professions

Answer:

1)SPEED =d/T

SPEED = 400/20

=20m/s

2)speed=d/t

= 50/10

=5m/s

ANSWER:

it is KNOWN as skletion. THANKS

Answer:

mountaineers carry oxygen cylinder with them because

The air USUALLY BECOMES thinner to breathe when going to high ALTITUDES. Hence the oxygen levels WOULD have gone down

ANSWER:

B) same PHYSICAL PROPERTIES

ANSWER:

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Answer:

GRAVITATIONAL FORCE between two POINT masses m and M SEPARATED by a distance r is F. Now if a point mass 3m is PLACED next to m, what will be that a. ... If r is the distance between two point masses m and M, then the gravitational force on m due to mass M is F=GMmr2.

ANSWER:

a. HARDENING of CEMENT

hardening of cement is IRREVERSIBLE

ANSWER:

MISCIBLE liquids

Explanation:

because it is a LIQUID

ANSWER:

cement will REACT with WATER and it get HARDENED. it is IRREVERSIBLE. the cement which get hardened once cannot be reversed.

Here are different means of COMMUNICATION in 21ST century:

1. Radio
2. Television
3. MOBILE phone
4. Wireless
5. COMPUTERS

ong>Answer:

Here you go ...............

EXPLANATION:

When sound TRAVELS in a GIVEN medium, it STRIKES the surface of another medium and bounces back in some other direction, this PHENOMENON is called the reflection of sound. The waves are called the incident and reflected sound waves.

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Have a nice day.

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1 - C)

2 - d)

3 - a)

4 - e)

5 - b)

ong>Explanation:

SEEDS are not audible as seeds are very HARD and completely ACIDIC so that seeds not audible .

# OP

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ong>ANSWER:

I WOULD like to LIVE in a very silent HOUSE where there is no NOISE pollution by industry and traffic.

I will like to have single house which is having a garden along

IRON nail will FLOAT in water.because light things usually float

HELLO how are you GOING

PURE

Explanation:

Gold is a pure element.

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3. DONALD Trump

Explanation:

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ong>ANSWER:

tulips,rose, sunflower and hibiscus are some examples of SPINY STEAM plant

the containers is made up of plastic only .

Explanation:

WHENEVER you went to the shopkeeper aur Market you will see E ITEMS are kept in plastic containers only

ong>ANSWER:

Chemical plants convert oil, natural gas, air, water, metals, and minerals into chemical products. Chemicals DERIVED from petroleum or natural gas are known as petrochemicals which are typically extracted during the REFINING process as CRUDE oil and natural gas liquids are CRACKED or distilled.

ong>Answer:

As metals are GIANT lattice structures, the number of ELECTROSTATIC forces to be broken is extremely large, and so metals have high melting and boiling points. This MEANS that the melting point and boiling point of metals are more similar to those for ionic compounds than for covalent substances.

Explanation:

ong>ANSWER:

Hyyyyyyyyyyy

Explanation:

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ong>Answer:

The CELLS MAKE up the TISSUE which aggregate to form the organ followed by the organ SYSTEM. The lung is the example of the organ. There are alveolar cells and MACROPHAGES which make up the lung. There are blood vessels which are responsible for the exchange of gases.

Thus, the correct answer is option D.

ong>Answer:

Here you go ..........

Explanation:

Zinc + HYDROCHLORIC ACID = Zinc CHLORIDE + Hydrogen gas

Zn + 2HCl -------> ZnCl2 + H2

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LAYERS is CORRECT answer

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ong>Answer:

Sugar DISSOLVES faster in HOT water than it does in COLD water

Heat transfer always OCCURS from a region of high temperature to another region of lower temperature, as described in the second law of thermodynamics.

ong>Answer:

Seawater is denser than both FRESH water and pure water because the DISSOLVED SALTS increase the mass by a larger proportion than the volume. The freezing POINT of seawater decreases as salt CONCENTRATION increases.

Explanation:

hope it helps you..

ong>Answer:

Mountaineers carry an oxygen cylinder along with them. It is because when they climb mountains, as altitude increases, the AMOUNT of oxygen level in the atmospheric air decreases as trees are not FOUND at higher ALTITUDES. As a RESULT, mountaineers suffer from DIZZINESS.

ong>Answer:

UPPER direction

Explanation:

HEAT is very light so it MOVES u

ward

ong>Answer:

As air is completely filled in our SURROUNDINGS........

Explanation:

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by the PROCESS of CRYSTALLIZATION

VEGETABLES, fruits, whole grains, MILK, and milk products are the major food sources of CARBOHYDRATES.

ong>Answer:

I know life cycle of SILK

Explanation:

The life cycle of silk moth starts when a female silk moth lays eggs. The CATERPILLAR or larvae are HATCHED from the eggs of the silk moth. The silkworms feed on mulberry leaves and give rise to pupa. In the pupa STAGE, a weave is netted around by the silkworm to hold itself.

The FLOW of electric current causes the following effects in a conductor: heating effect, CHEMICAL effect, magnetic effect.

ong>Answer:

Rolling Friction

Explanation:

Ball bearing WORKS on the principle of rolling friction. Ball bearing contains steel balls or rollers. It is USED between the WHEELS and axle of a CAR to reduce friction.

ong>Answer:

Protons are particles with a POSITIVE charge of 1.602 × 10^−19 C, or SIMPLY written as “+1,” and a mass of 1.673 × 10−27 kg (938.27 MeV/c2) [1]. Compared to electrons, protons are 1836 times heavier. The protons and neutrons are called nucleons, as both are ELEMENTS of the nucleus.

ong>Explanation:

1. NITROGEN AND OXYGEN ARE THE TWO MAJOR CONSTITUENTS OF AIR. NITROGEN FORMS ABOUT 78 PERCENT AND OXYGEN FORMS ABOUT 21 PERCENT OF DRY AIR BY VOLUME. AIR ALSO CONTAINS CARBON DIOXIDE WHICH FORMS ABOUT 0.03 PERCENT OF THE VOLUME OF AIR. THE REMAINING PART OF AIR CONSISTS OF INERT GASES ,WATER VAPOUR AND DUST.

2. The experiment is supposed to show that air has weight. You first make a balance by tying a piece of string around the CENTER point of the yardstick and then tying the other end of the string to something like a shower rod, so that the yardstick balances. This may take some work, so be patient.

3. The atmosphere protects living things from the Sun's most harmful rays. Gases reflect or absorb the strongest rays of sunlight (Figure below). Theatmosphere SHIELDS Earth from the most harmful solar rays.

4. Earth's Atmospheric Layers

Troposphere. The troposphere STARTS at the Earth's surface and extends 8 to 14.5 kilometers high (5 to 9 miles). ...Stratosphere. The stratosphere starts just above the troposphere and extends to 50 kilometers (31 miles) high. ...Mesosphere. ...Thermosphere. ...Ionosphere. ...Exosphere. ...Credit: NASA/Goddard.

5.

The main properties of water are its polarity, cohesion, adhesion, surface tension, high specific heat, and evaporative cooling. A water molecule is slightly charged on both ENDS. This is because oxygen is more electronegative than hydrogen.Aug 22, 2014

6. Sedimentation can be defined as the settling down of suspended, insoluble, heavy solid particle in a solid-LIQUID mixture. (b) Decantation can be defined as the process of pouring out the clear liquid without disturbing the sediment.

ong>Answer:

The three primary parts of a seed are the EMBRYO, endosperm, and seed coat. The embryo is the young multicellular organism before it emerges from the seed. The endosperm is a source of STORED food, consisting PRIMARILY of starches. The seed coat consists of one or more protective layers that encase the seed.

Explanation:

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Explanation:

but it's a DIFFICULT QUESTION

ong>Answer:

Direct purposes include bathing, DRINKING, and cooking, while examples of INDIRECT purposes are the use of WATER in processing wood to make PAPER and in producing steel for automobiles. The bulk of the world's water use is for agriculture, INDUSTRY, and electricity.

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