No products in the cart.

Ask questions which are clear, concise and easy to understand.

Ask Question
  • 1 answers

Gaurav Seth 4 years, 10 months ago

Human respiratory system: The human respiratory system begins from nose cavities called nostrils. The air from cavity enters into the pharynx and then into the trachea (or wind pipe). The trachea runs down the neck and divides into two tubes called bronchi. Each bronchi is connected to a lung. In the lungs each bronchi divides into a large number of thin tubes called bronchioles. The bronchioles have a tiny air sac at their ends called alveoli. It is in the alveoli where exchange of gases takes place.
Mechanism of breathing:

  1. When we breathe in air, the diaphragm contracts which results in the increase in volume of chest cavity. Due to this expansion of chest cavity, the air pressure in the lungs decreases. Thus, air from outside rushes into the lungs through nostrils, trachea and bronchi. Therefore, air sacs of lungs get filled with air when we breathe in. The exchange of gases between alveoli and blood takes place by the process of diffusion.
    Now, the air present in air sacs of the lungs is rich in C02. When we breathe out air, the diaphragm relaxes which results in the decrease in volume of chest cavity. This contraction pushes the air from the lungs into the trachea, nostrils and then out of the body into air. Breathing in air is called inhalation and breathing out air is called exhalation.
  2. Mechanism of gaseous exchange during respiration: The oxygen is carried by blood to all the parts of the body. As the blood passes through the tissues of the body, the oxygen from the blood diffuses into the cell, whereas the C02 which is produced during respiration diffuses into the blood and is carried to the lungs.
  • 1 answers

Sia ? 4 years, 4 months ago

Totango is a Customer Success Software that helps enterprises drive revenue growth, reduce churn while focusing on the SaaS customer journey.

  • 2 answers

[email protected] Gmail 4 years, 9 months ago

Thanks Yogita..

Yogita Ingle 4 years, 10 months ago

The garland of pots is connected with the toothed wheel which again is connected to the drum. As the bullocks move the drum, the toothed wheel connected to it also moves, which in turn rotates the garland of pots which lifts water from the well.

  • 5 answers

Aishee Mistri 4 years, 10 months ago

We can recognize animals like sheep, goat, cow, dog, cat etc by their smell

Ashok Malvi 4 years, 10 months ago

Ok

Ranjana Saxena 4 years, 10 months ago

Dog

Preeti Sharma Sharma 4 years, 10 months ago

Ok

Gaurav Seth 4 years, 10 months ago

Q3. Name the animals that you would be able to recognize only by their smell, without seeing them?

Answer: We can recognize animals like sheep, goat, cow, dog, cat, etc by their smell.

  • 5 answers

Pratishtha Ratanpara 4 years, 10 months ago

Fish, dolphin, whale.

Saanvi Tiwari 4 years, 10 months ago

1) Different Types of Fishes 2) Different Types of plants 3)Besides algae 4)frogs 5)larvae 6)floating insects I hope my answer helpful to you.☺️

Nauka Barot 4 years, 10 months ago

Fish

Nitin Dhami 4 years, 10 months ago

Fishes

Yogita Ingle 4 years, 10 months ago

Things we can see in water:-|

  • fishes
  • tortoise
  • some kind of plants
  • garbage
  • 2 answers

Resnia Konsam 4 years, 10 months ago

By there smelling sense that's why they came to know that this ant is from our group

Raunak Sharma 4 years, 10 months ago

By there sense
  • 1 answers

Gaurav Seth 4 years, 10 months ago

1885

On 28 December 1885, the first session of the Indian National Congress (INC) was held at Bombay and continued till 31 December. It was started by a retired British civil servant Allan Octavian Hume along with Dadabhai Naoroji and Dinshaw Wacha.

  • 1 answers

Vanya Waghmare 4 years, 10 months ago

In mathematics, physics and engineering , the sinc function , denoted by sinc(x) , has two slightly different definitions , in mathematics , the historical unormalized sinc function is defined for x = 0 by alternatively, the unormalized sinc function is often called the sampling , Indicated by Sa(x)
  • 5 answers

Pratishtha Ratanpara 4 years, 10 months ago

Mosquito can find us by the heat of our body or by the smell of our feet.

Aishee Mistri 4 years, 10 months ago

Mosquito can find us by smell of our body and smell of the sole of our feet and heat of our body

Resnia Konsam 4 years, 10 months ago

Mosquitoes can find us by smell of our body by smell of the sole of our feet and by the heat of our body

Sashmitha Dhanasekar 4 years, 10 months ago

Mosquito can find us by our sweat and the heat of our body

Meghna Thapar 4 years, 10 months ago

Female mosquitoes searching for a meal of blood detect people partly by using a special olfactory receptor to home in on our sweat. Mosquitoes searching for a meal of blood use a variety of clues to track down humans, including our body heat and the carbon dioxide in our breath. Mosquitoes are attracted to the carbon dioxide humans and other animals emit. They also use their receptors and vision to pick up on other cues like body heat, perspiration and skin odor to find a potential host. 

  • 1 answers

Himanshu Kumar 4 years, 10 months ago

Kon sa answer hai
  • 4 answers

Richa Nigam 4 years, 10 months ago

Golconda fort is located in West part of Hyderabad city

Sashmitha Dhanasekar 4 years, 10 months ago

Golconda fort is located in west part of Hyderabad City

Mayank Rauthan 4 years, 10 months ago

Hyderabad

Yogita Ingle 4 years, 10 months ago

Golconda Fort is located in the western part of Hyderabad city and is about 9 km from the Hussain Sagar Lake. 

  • 0 answers
The
  • 1 answers

Anurag Kumar Jha 4 years, 10 months ago

The
  • 3 answers

Baibhab Paul 4 years, 10 months ago

Jamsenpa set the world record for becoming the first woman climber to reach the top of Mt Everest twice within five days. She is also the first Indian woman to reach the top of Mt Everest for the fifth time.

Mayank Rauthan 4 years, 10 months ago

The first indian woman was Bichendri pal

Yogita Ingle 4 years, 10 months ago

Jamsenpa set the world record for becoming the first woman climber to reach the top of Mt Everest twice within five days.

She is also the first Indian woman to reach the top of Mt Everest for the fifth time.

  • 3 answers

Sashmitha Dhanasekar 4 years, 10 months ago

Great Wall of china

Baibhab Paul 4 years, 10 months ago

Great Wall of China The Great Wall of China is the longest in the world and has a main-line length of 3,460 km (2,150 miles - nearly three times the length of Britain - plus 3,530 km (2,193 miles) of branches and spurs.

Gaurav Seth 4 years, 10 months ago

Great Wall of China
The Great Wall of China is the longest in the world and has a main-line length of 3,460 km (2,150 miles - nearly three times the length of Britain - plus 3,530 km (2,193 miles) of branches and spurs.

  • 1 answers

Shagun Sinha 4 years, 10 months ago

How much is income how was they go in vacation I have been farming for about 15 years I usually grown wheat paddy pulses cotton at Sector paddy needs a lot water etc.
  • 1 answers

Mayank Rauthan 4 years, 10 months ago

Neil Armstrong was the first man to go on moon
  • 5 answers

Account Deleted 4 years, 10 months ago

Nasa

Aishee Mistri 4 years, 10 months ago

NASA

Mayank Rauthan 4 years, 10 months ago

NASA

[email protected] Gmail 4 years, 10 months ago

NASA

Aamna Nawaz 4 years, 10 months ago

Williams received her commission as an Ensign in the United States Navy from the United States Naval Academy in May 1987. After a six-month temporary assignment at the Naval Coastal System Command, she received her designation as a Basic Diving Officer and then reported to Naval Aviation Training Command.
  • 5 answers

Aishee Mistri 4 years, 10 months ago

Lake

Sashmitha Dhanasekar 4 years, 10 months ago

Lake

Account Deleted 4 years, 10 months ago

Lake

Mayank Rauthan 4 years, 10 months ago

Lake

Baibhab Paul 4 years, 10 months ago

Lake
  • 1 answers

Mohit Seervi 4 years, 10 months ago

In the there are many planets .There are all eight planets in our solar system . There is no gravity in our solar system also their are uncontable stars at our solar system the gap of the two planets is called space there is a planet name Earth. In Earth there is gravity and their is air all around the earth so that their are many lives in earth . All the planets of the solar system are shape of circle. The beautiful planet from all the 8 planets is Earth
  • 1 answers

Srijan Majumder 4 years, 10 months ago

Soluble =The substance that dissolve in water is soluble . Insoluble=The substance that didn't dissolve in water is insoluble
  • 3 answers

Sashmitha Dhanasekar 4 years, 10 months ago

The dead sea is full of salt so you would float

Aryan Vikram 4 years, 10 months ago

The water of dead sea is full of salt.so you will float and not sink

Yogita Ingle 4 years, 10 months ago

The water of the Dead Sea is full of salt, which makes it much denser and heavier than freshwater. If you swim in it, you float very easily.

  • 4 answers

Mayank Rauthan 4 years, 10 months ago

Mamidi tandra take 4 weeks of hard work to make

Vimala Sharma Vimala Sharma 4 years, 10 months ago

Snake are the friend of the farmer true or false

Vimala Sharma Vimala Sharma 4 years, 10 months ago

Mamidi tandra takes week of hard work

Vimala Sharma Vimala Sharma 4 years, 10 months ago

Answer
  • 3 answers

Vimala Sharma Vimala Sharma 4 years, 10 months ago

Mamidi tandra takes -week of hard work

Gaurav Seth 4 years, 10 months ago

Ans: 

Salt solution , Glucose solution and ORS

Vomiting and loose motion cause dehydration. Hence, the intake of fluids to maintain the electrolytes is balanced. Oral rehydration therapy (ORT) is a type of fluid replacement used to prevent and treat dehydration, especially due to diarrhoea. It involves drinking water with modest amounts of sugar and salts, specifically sodium and potassium.

Vimala Sharma Vimala Sharma 4 years, 10 months ago

Answer
  • 5 answers

Sashmitha Dhanasekar 4 years, 10 months ago

Protein

Atul Sahu 4 years, 10 months ago

Iron

Aman Singh 4 years, 10 months ago

Protein

Aamna Nawaz 4 years, 10 months ago

Protein

Aamna Nawaz 4 years, 10 months ago

Protein
  • 2 answers

Aamna Nawaz 4 years, 10 months ago

Zarin

Tahmid Rayeed Rayeed 4 years, 10 months ago

Tell the answer ? ??
  • 5 answers

Partibha Patel 4 years, 10 months ago

Jaipur

Alankrita . 4 years, 10 months ago

Jaipur

Jenil Mehta 4 years, 10 months ago

Jaipur pink city

Srijal Sharma 4 years, 10 months ago

Jaipur pink city

Gaurav Seth 4 years, 10 months ago

After independence in 1947, Jaipur was made the capital of the newly formed state of Rajasthan. 
Jaipur is the capital of Rajasthan which was founded by Maharaja Sawai Jai Singh II on November 18, 1727

  • 4 answers

Tahmid Rayeed Rayeed 4 years, 10 months ago

Sir?? these is petrol sir please don't write long paragraph

Partibha Patel 4 years, 10 months ago

It consists of naturally occurring hydrocarbons of various molecular weights and may contain miscellaneous organic compounds.[1] The name petroleum covers both naturally occurring unprocessed crude oil and petroleum products that are made up of refined crude oil. A fossil fuel, petroleum is formed when large quantities of dead organisms, mostly zooplankton and algae, are buried underneath sedimentary rock and subjected to both intense heat and pressure. Petroleum has mostly been recovered by oil drilling (natural petroleum springs are rare). Drilling is carried out after studies of structural geology (at the reservoir scale), sedimentary basin analysis, and reservoir characterisation (mainly in terms of the porosity and permeability of geologic reservoir structures) have been completed.[2][3] It is refined and separated, most easily by distillation, into numerous consumer products, from gasoline (petrol), diesel and kerosene to asphalt and chemical reagents (ethylene, propylene, butene,[4] acrylic acid,[5][6][7] para-xylene[8]) used to make plastics, pesticides and pharmaceuticals.[9] Petroleum is used in manufacturing a wide variety of materials,[10] and it is estimated that the world consumes about 95 million barrels each day.

Partibha Patel 4 years, 10 months ago

A fossil fuel, petroleum is formed when large quantities of dead organisms, mostly zooplankton and algae, are buried underneath sedimentary rock and subjected to both intense heat and pressure. Petroleum has mostly been recovered by oil drilling (natural petroleum springs are rare). en.m.wikipedia.org › wiki › Petrole... Petroleum - Wikipedia

Gaurav Seth 4 years, 10 months ago

  • Petroleum is formed from the remains of dead plants and animals.
  • When plants and animals die, they sink and settle on the seabed.
  • Millions of years ago, these dead wildlife and vegetation decomposed and got mixed with sand and silt.
  • Certain bacteria helped in the decomposition of this organic matter and caused some chemical changes.
  • Matter consisting of largely carbon and hydrogen was left behind. However, as there is not sufficient oxygen at the bottom of the sea, the matter could not decompose completely.
  • The partially decomposed matter remained on the seabed and eventually was covered with multiple layers of sand and silt.
  • This burying took millions of years, and finally, due to high temperature and pressure, the organic matter decomposed completely and formed oil.

myCBSEguide App

myCBSEguide

Trusted by 1 Crore+ Students

Test Generator

Test Generator

Create papers online. It's FREE.

CUET Mock Tests

CUET Mock Tests

75,000+ questions to practice only on myCBSEguide app

Download myCBSEguide App