No products in the cart.

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

Ask Question
  • 4 answers

Preethisanjana Preethisanjana 6 years, 5 months ago

The process is known as carboniasation form by carbon dioxide Coal is mainly carbon on heating produces mainly carbondioxide gas and a lot of heat energy

Vinod Swami 6 years, 5 months ago

The process is known as canonisation because it is made from process of carbon dioxide

Priyamani Priyamani Raja 6 years, 5 months ago

About 300 million years ago the earth had dense forest in low lying wetland areas . Due to natural processes,like flooding,these forest got buried under the soil . Under high pressure and high temperature dead plants got slowly convected to coal . This process is called carbonisation

Yogita Ingle 6 years, 5 months ago

 

Coal was formed by the decomposition of large land plants and trees buried under the Earth about 300 million years ago.

About 300 million years ago, the Earth had dense forests in the low lying wet areas.

Due to natural calamities like earthquakes, volcanoes, floods, etc.  these forests got buried under the surface of the Earth.

As more soil got deposited on them, they were compressed.

As a result, the temperature also rose as they sank deeper and deeper.

Due to high pressure and temperature and the absence of air, the wood of the buried forest plants and trees slowly got converted into coal.

The slow process by which the dead plants buried under the Earth have become coal is called as carbonisation.

Since coal was formed from the remains of the plants, it is called a fossil fuel.

Coal, which is mainly carbon, on heating produces mainly carbon dioxide gas and a lot of heat energy.

  • 2 answers

Preethisanjana Preethisanjana 6 years, 5 months ago

Forces effect

Gaurav Seth 6 years, 5 months ago

Forces affect how objects move. They may cause motion; they may also slow, stop, or change the direction of motion of an object that is already moving. Since force cause changes in the speed or direction of an object, we can say that forces cause changes in velocity. Remember that acceleration is a change in velocity.

  • 1 answers

Gaurav Seth 6 years, 5 months ago

Shifting cultivation is a form of agriculture which involves clearing of a plot of land by cutting of trees and burning them. The ashes are then mixed with the soil and crops are grown. After the land has lost its fertility, it is abandoned.  The farmers then move to a new place.
Disadvantages:
Leads to deforestation
Loss of fertility of a particular land
Leads to Soil erosion
Burning of trees – air pollution
Insufficient cultivation of crops for a large population.

  • 0 answers
  • 0 answers
  • 5 answers

Ridhima Chhabra 6 years, 5 months ago

Want to become a basketball player

Nitish Kumar 6 years, 5 months ago

My aim is to become a army officer

Sita Anchal 6 years, 5 months ago

My aim is to become a nuclear scientist

Arti Yadav 6 years, 5 months ago

My aim is to become a army officer

Vinod Swami 6 years, 5 months ago

My aim is to become a heart specialist
  • 0 answers
  • 4 answers

Puneet Verma 6 years, 5 months ago

Burning

Puneet Verma 6 years, 5 months ago

Plastic is biofogradable . It takes million of year to decompose . It produce harmful gases on b

Vinod Swami 6 years, 5 months ago

Plastic is a non biodegradable it can reduce level of ground water or it can release toxic substance

Sia ? 6 years, 5 months ago

  1. Plastic affects human health.
    Toxic chemicals leach out of plastic and are found in the blood and tissue of nearly all of us. Exposure to them is linked to cancers, birth defects, impaired immunity, endocrine disruption and other ailments.
  2. Plastic spoils our groundwater.
    There are thousands of landfills in the United States. Buried beneath each one of them, toxic chemicals from plastics drain out and seep into groundwater, flowing downstream into lakes and rivers.
  3. Plastic threatens wildlife.
    Wildlife become entangled in plastic, they eat it or mistake it for food and feed it to their young, and it is found littered in even extremely remote areas of the Earth. In our oceans alone, plastic debris outweighs zooplankton by a ratio of 36-to-1.
  4. Plastic piles up in the environment.
    Americans discard more than 30 million tons of plastic a year. Only 8 percent gets recycled. The rest ends up in landfills, is burned or becomes litter.
  • 1 answers

Mohammadi Begam 6 years, 2 months ago

Knowledge is not a god gift. It is something that is learnt and gathered by human beings in the course of their lives, what we have learnt.
  • 1 answers

Sia ? 6 years, 5 months ago

A friend who supports others only when it is easy and convenient to do so: “I thought Gene would always stick by me, but when I got into trouble, he turned out to be a fair-weather friend.”

  • 1 answers

Yogita Ingle 6 years, 5 months ago

Visakhapatnam steel plant is located near a port. It is also called the Vizag steel plant. It is situated in Visakhapatnam, Andhra Pradesh. It is an integrated steel plant which was set up in 1971 based on German technology. It was conferred to Navratna status in 2010.

  • 1 answers

Yogita Ingle 6 years, 5 months ago

  • More than 90% of the world’s population lives in 10% of the land surface.
  • Many more people live in the northern hemisphere than in the southern hemisphere.
  • 60% of the world’s population lives in just 10 countries.
  • Out of every 100 people in the world:
    • 61 people live in Asia,
    • 12 people live in Europe,
    • 13 people live in Africa,
    • 8 people live in central and South America,
    • 5 people live in northern America and
    • 1 people live in Oceania (Australia, New Zealand and Pacific Islands).
  • 0 answers
  • 1 answers

Yogita Ingle 6 years, 5 months ago

The British itself fully ruined India and took out some policies like doctrine of lapse,payment of revenue in cash,dual government and many others took everything and their policy that they should get everything maximum at cheapest rates or prices possible i think this is the way how the British siphon off the wealth of India.

  • 1 answers

Shivani Arora 6 years, 5 months ago

It refers to the efforts made to increase farm production in order to meet the growing demand of increasing population
  • 2 answers

Shivani Arora 6 years, 5 months ago

As we know that cell is the smallest and basic unit of life and capable for all living functions. Cell are building blocks of life that is the only reason

Sameer Arora 6 years, 5 months ago

A body of living organisms has basis structural unit such as cell . Cells are of different sizes,shapes and group together to form organ,organ system Similar functions are in multicellular organisms are carried out by group of specialized cells which are organized into tissues and organ such as the higher plants and animals.hence,cell is known as basis structural and functional unit of life
  • 1 answers

Sia ? 6 years, 5 months ago

A cereal which is the most important kind grown in temperate countries, the grain of which is ground to make flour for bread, pasta, pastry, etc.

  • 1 answers

???Mansu ??? ?Raj? 6 years, 5 months ago

They both suffered from tsunami?
  • 0 answers
  • 1 answers

Nishit Kapadia 6 years, 5 months ago

What is substary alliance
  • 4 answers

Preethisanjana Preethisanjana 6 years, 5 months ago

It is the method of sowing seeds

Aditya Narayan Singh 6 years, 5 months ago

The seed drill is used for sowing with the help of tractors.This sows the seeds uniformly at equal distance and depth.

Riya Kumar 6 years, 5 months ago

Seed drill is a machine ised to sow seeds and avoid overcrowding of plants as it sows seeds at constant distances

Vivek S B 6 years, 5 months ago

It is moderñ method for sowing seeds
  • 1 answers

Gaurav Seth 6 years, 5 months ago

The functions and powers of the tribal chiefs changed considerably under the British rule. They lost much of their administrative power. They were forced to follow the laws made by the British. They had to pay tribute to the British. They were expected to discipline their people on behalf of the British government. However, they were allowed to keep their land titles over a cluster of villages and could rent out lands. Thus, the authority of the tribal chiefs significantly reduced under the colonial rule.

  • 1 answers

Gaurav Seth 6 years, 5 months ago

The shifting cultivators were forced to take up settled cultivation. But type of land and shortage of water meant they could not produce enough. Many of them had to move on to other areas in search of work when access to the forest was restricted.

  • 0 answers

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