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  • 3 answers

Samey Kothavade 6 years ago

I moves by the foot muscles by contraction and relaxation

Veronica Kainth 6 years ago

If you have a CBSE science book then you will study this

Veronica Kainth 6 years ago

It takes the help of it's muscles....
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Meghna Thapar 5 years, 10 months ago

Muscles are attached to the bones. When the muscle attached to a bone contracts, it pulls the bone due to which the bone moves at the joint. The other muscle of the pair relaxes. To move the bone in the opposite direction, the relaxed muscle contracts to pull the bone towards its original position, while the first relaxes. Thus, two muscles work together to move a bone.
  • 2 answers

Yogita Ingle 6 years ago

When warm air rises, it expands and cools. Cool air can't hold as much water vapor as warm air, so some of the vapor condenses onto tiny pieces of dust that are floating in the air and forms a tiny droplet around each dust particle. When billions of these droplets come together they become a visible cloud.

Kurian P M 6 years ago

Ft
  • 1 answers

Meghna Thapar 5 years, 10 months ago

Modification in birds which help them to fly: i. Their forelimbs are modified to form wings for flying. ii. They have flight feathers which provide a large flat surface. iii. Their bones are hollow and light. iv. They have extremely light and streamlined body. v. They have powerful flight muscles. vi. Their breastbone is extended for the attachment of large flight muscles.
  • 1 answers

Yogita Ingle 6 years ago

Sludge refers to the residual, semi-solid material left from industrial wastewater, or sewage treatment processes. It can also refer to the settled suspension obtained from conventional drinking water treatment,and numerous other industrial processes.

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Veronica Kainth 6 years ago

The two sources of roughage are:- •Lady Finger •Banana

Sahil Singh 6 years ago

The two sources of roughage are 1.mango 2. Green vegetables
  • 2 answers

Yogita Ingle 6 years ago

Milk overflows when boiled for the first time because it contains entrapped air. The air expands on heating and tends to escape lifting the surface of milk.Once all the air is expelled, the boiling would be regular and smooth. A second boiling would not lead to overflow.

Swayam Sisodia 6 years ago

Jauqhwhw8jqjiqjshejshwhaiqjwhwjwjauqhqha6sheteuwqjwyhejdi292j2jeurje
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Yogita Ingle 6 years ago

Measurement: Comparing an unknown quantity with some known quantity is called measurement.

Result of Measurement: The result of measurement has two parts; one part is the number and another part is the unit. The known quantity which is used in measurement is called a unit. For example; when you say that your height is 150 cm then the measurement of your height is being expressed in a number, i.e. 150 and a unit, i.e. centimeter.

  • 1 answers
No image will be formed in a completely dark room as image is formed by reflection of light
  • 2 answers

Kanika Panwar 6 years ago

We need food to live. It also helps in growth of our body. It keep our body healthy. Food is very important in our life. We can not live without food.

Yogita Ingle 6 years ago

All foods contain one or a combination of the 6 nutrients. If you eat a balanced diet consisting of a variety of healthy foods, you are certain to receive these nutrients every day.

Food has 3 main functions in the body:

  • Growth and Development
  • Provision of Energy
  • Repair and maintenance of the body's 

 

  • 2 answers

Dhepesh Goli 6 years ago

Yes

Yogita Ingle 6 years ago

Materials which allow electric current to pass through them are called conductors of electricity. Examples are iron nail, key, safety pin, water, human body etc.

Conductors are mainly metallic

  • 1 answers
Substances that mix well in water
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Krishna Kumar 6 years ago

Hi

Gaurav Seth 6 years ago

Acclimatization: The changes which happen in the body of a single organism over a short duration; due to sudden changes in its surroundings is called acclimatization. For example; when a person (who lives in the plains) goes to a mountain, he may experience difficulty in breathing initially. Within a couple of days, he would begin to breathe normally because his body learns to make adjustments. This is an example of acclimatization.

  • 1 answers

Yogita Ingle 6 years ago

Periodic motion, in physics, motion repeated in equal intervals of time. Periodic motion is performed, for example, by a rocking chair, a bouncing ball, a vibrating tuning fork, a swing in motion, the Earth in its orbit around the Sun, and a water wave.

  • 1 answers

Viraj Aggarwal 6 years ago

A plant in which primary root is short lived and is replaced by a cluster of fibre like roots is called a fibrous root. Eg-maize, wheat etc
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  • 1 answers

Yogita Ingle 6 years ago

The changes in the environment (external or internal) to which the organism respond and react are called stimuli. It is a thing that incites to action or exertion or quickens action, feeling, thought, etc.

  • 1 answers

Yogita Ingle 6 years ago

Lactometer is a small glass instrument that is used to test the purity of the milk. It works on the principle of specific gravity of milk (Archimede's Principle). It measures the relative density of milk with respect to water. If the specific gravity of a sample of milk is within the approved ranges, the milk is pure.

  • 1 answers

Meghna Thapar 5 years, 10 months ago

The non-luminous objects like the table and the chair lying in a room can be seen during daytime because they reflect light into our eyes.
  • 2 answers

Vaijnath Munde 6 years ago

Comuflage means to change the colour of skin according to the surroundings.

Muhammad Fadil 6 years ago

FwVfn
  • 1 answers

Yogita Ingle 6 years ago

  1. Sometimes, because of excessive rain, rivers and canals begin overflowing and the adjoining lands start submerging. This condition is called flood. It cause epidemics and serious loss to life and property.
  2. Water in a vaporous form especially when below boiling temperature and diffused
  • 1 answers

Narayan Biswas 6 years ago

Find The Courier Of Squre
  • 2 answers

Kanika Panwar 6 years ago

The process of conversion of liquid into its vapour is called evaporation

Yogita Ingle 6 years ago

  • When salt is mixed with water (seawater), the water is heated until all the water becomes vapor and only the salt is left behind.
  • This process of conversion of a liquid into its vapor is called Evaporation
  • This is how salt is separated from seawater.
  • 1 answers

Yogita Ingle 6 years ago

The rate of evaporation is affected by the following factors:

i. Temperature: The rate of evaporation increases with an increase in temperature.

ii. Surface area: The rate of evaporation increases with an increase in surface area.

iii. Humidity: The amount of water vapour present in the air is called humidity.

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