CBSE > Class 07 > Social Science | CBSE Board | Homework Help

Infectious disease is caused by certain microorganisms called pathogens and leads to infections. These can be spread from one person to another hence are also called communicable disease. For example cholera, malaria, chickenpox.

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What is an opd?

Posted by Shagun Parihar 5 years, 9 months ago

CBSE > Class 07 > Social Science

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Yogita Ingle 5 years, 9 months ago

OPD stands for out patient department
In an OPD patients are first brought in and treated in a hospital without being admitted to any special ward.

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Why should we pay taxes to government?

Posted by Shagun Parihar 5 years, 9 months ago

CBSE > Class 07 > Social Science

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Meghna Thapar 5 years, 7 months ago

Taxation is a means by which governments finance their expenditure by imposing charges on citizens and corporate entities. The main purpose of taxation is to accumulate funds for the functioning of the government machineries. The money we pay in taxes goes to many places. In addition to paying the salaries of government workers, your tax dollars also help to support common resources, such as police and firefighters. Tax money helps to ensure the roads you travel on are safe and well-maintained. Taxes fund public libraries and parks.

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What are the two categories of healthcare services?

Posted by Shagun Parihar 5 years, 9 months ago

CBSE > Class 07 > Social Science

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Yogita Ingle 5 years, 9 months ago

Public health service is a chain of health centres and hospitals run by the government.
Private health facility is owned by an individual or company and not by the government.

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How have human beings adopted to the environment to fulfill their needs

Posted by Nadeem Ahmed 5 years, 9 months ago

CBSE > Class 07 > Social Science

1 answers

Anamika Tiwari 5 years, 9 months ago

They are simply modifying the natural environment

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What is the difference between ecosystem and biosphere

Posted by Anamika Tiwari 5 years, 9 months ago

CBSE > Class 07 > Social Science

2 answers

Anamika Tiwari 5 years, 9 months ago

Thankyou so much

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Yogita Ingle 5 years, 9 months ago

Biome	Ecosystem
It is a large land area with a distinct climate and plants and animal species.	It refers to the interaction of biotic and abiotic components.
The geographical area is large.	The geographical area is small.
It depends upon the climatic factors such as rainfall, ice, snow, temperature, etc.	It does not depend upon the climatic factors.
It comprises multiple ecosystems.	It is a part of biome comprising biotic and abiotic factors.
It abounds in plant and animal species.	It is smaller in size and has fewer species of plants and animals.
All the organisms in a biome do not interact with each other.	All the organisms in an ecosystem interact with each other in trophic levels and food web.
It is affected by the latitude.	It is not influenced by the latitude.
Desert, grasslands, tundra, and tropical rainforests are some examples of biomes.	An ecosystem includes ponds, coral reefs, etc.

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What are the difficulties historians face in using manuscripts?

Posted by Kavin Nesamani 5 years, 9 months ago

CBSE > Class 07 > Social Science

1 answers

Shreyshi Karn 5 years, 9 months ago

Ans - Manuscripts were written by hands and as a result there were small but significant difference between any 2 copies. The scribers who copied bthem introduced changes.as a result historians have to read same text to guess what the anthors had originally written.

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Why is our ecosystem important for us

Posted by Sonakshi Singh Sonakshi Singh 5 years, 9 months ago

CBSE > Class 07 > Social Science

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Meghna Thapar 5 years, 7 months ago

The importance of an ecosystem is that it provides space to plants and animals to interact with each other as well as their physical environment. Through interactions they are interdependent on each other for their environment. Humans are fully dependent on Earth's ecosystems and the services that they provide, such as food, clean water, disease regulation, climate regulation, spiritual fulfillment, and aesthetic enjoyment. The relationship between human well-being and ecosystem services is not linear.

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Posted by Bhavya Kanwar 5 years, 9 months ago

CBSE > Class 07 > Social Science

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History ch 1

Posted by Priyanshi Tripathi 5 years, 9 months ago

CBSE > Class 07 > Social Science

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Fill in the blanks chapter 1

Posted by Prabhjot Singh Sekhon 5 years, 9 months ago

CBSE > Class 07 > Social Science

1 answers

Prabhjot Singh Sekhon 5 years, 9 months ago

Integers

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Write some points on Ideal environment

Posted by Anmol Raikwar 5 years, 9 months ago

CBSE > Class 07 > Social Science

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Paritantra kya hai

Posted by Mukesh Shakya 5 years, 9 months ago

CBSE > Class 07 > Social Science

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Why is our environment change

Posted by Monika Singh 5 years, 9 months ago

CBSE > Class 07 > Social Science

3 answers

Anamika Tiwari 5 years, 9 months ago

Mine answer is write which i have written upwards

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Anamika Tiwari 5 years, 9 months ago

Our environment is changing because of needs of people and their needs are increading day by day and therefore they are modifying the natural environment and hence the environment is changing. This is the write answer for your question.

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Monika Singh 5 years, 9 months ago

Please tell me

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A thin layer of soil covers the?

Posted by Kanishka Pariyani 5 years, 9 months ago

CBSE > Class 07 > Social Science

3 answers

Rahul Kumar 5 years, 9 months ago

Lithosphere on crust

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Anamika Tiwari 5 years, 9 months ago

Lithosphere is the ans

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Anamika Tiwari 5 years, 9 months ago

Lithosphere

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Ibn batuta gives us a lot of information about the reign of

Posted by Derick Mathews 5 years, 9 months ago

CBSE > Class 07 > Social Science

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Sir mujhe isme geography nhi mil pa rahi hai

Posted by Anuja Rathi 5 years, 9 months ago

CBSE > Class 07 > Social Science

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Anuja Rathi 5 years, 7 months ago

Total sst mein hai dekho ch no geo ka environmemt hai aur usme hai

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What changes are made by human to environment for his convenients

Posted by Priyanshu Vashisht 4 years, 8 months ago

CBSE > Class 07 > Social Science

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Sia ? 4 years, 8 months ago

humans have been changing the environment around them for almost as long as they have walked the earth from using stone to create tools to clearing whole forests humans have changed their environment and in the process made thousands of species extinct and even more endangered This is very selfish and eventually doesn't even benefit humans themselves due to climate change which would cause disasters bigger than humanity

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How dose ocean and water became sline

Posted by Sri Subiksha 5 years, 9 months ago

CBSE > Class 07 > Social Science

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Aradhaya Singh 5 years, 9 months ago

After year and year if river inflow and evaporation, the salt content of the lake water built up to the present levels , this same process make sea water salty . River carry dissolved salt to the oceans ,water evaporate from ocean to fall again as rain to feed the river , but the salts remains in the oceans .

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How many oceans and continets are there in the Earth

Posted by Maheswar Sah00 5 years, 9 months ago

CBSE > Class 07 > Social Science

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Yogita Ingle 5 years, 9 months ago

Around 71 percent of the Earth is covered in salt water. We call this major body of water the Ocean. The ocean is divided up into 5 major oceans, but they are actually all connected together. They are mostly divided up by the world's seven continents.

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Amount of water vapour in air ?

Posted by Aradhaya Singh 5 years, 9 months ago

CBSE > Class 07 > Social Science

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Vritti Agarwal 5 years, 9 months ago

The water-vapour content of the atmosphere varies from place to place and from time to time because the humidity capacity of air is determined by temperature. At 30 °C (86 °F), for example, a volume of air can contain up to 4 percent water vapour. At -40 °C (-40 °F), however, it can hold no more than 0.2 percent.

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Explain the ecosystem in biosphere

Posted by Krishna Krishna 5 years, 9 months ago

CBSE > Class 07 > Social Science

1 answers

M B 5 years, 9 months ago

Ecosystem is a system formed by the interaction of all living organisms with each other and with their physical and chemical factors of the environment in which they live.

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Explain the ecosystem in the biosphere

Posted by Krishna Krishna 5 years, 9 months ago

CBSE > Class 07 > Social Science

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Meghna Thapar 5 years, 7 months ago

The biosphere is defined as the area of the planet where organisms live, including the ground and the air. An example of the biosphere is where live occurs on, above and below the surface of Earth.An ecosystem is a community of living organisms interacting with one another and their non-living environment within a particular area. ... The biosphere is that part of the earth inhabited by living organisms, including land, ocean and the atmosphere in which life can exist. Biosphere, relatively thin life-supporting stratum of Earth's surface, extending from a few kilometres into the atmosphere to the deep-sea vents of the ocean. The biosphere is a global ecosystem composed of living organisms (biota) and the abiotic (nonliving) factors from which they derive energy and nutrients.

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From where were the recores obtained?

Posted by Happy Khaira 5 years, 9 months ago

CBSE > Class 07 > Social Science