States of Matter

____ is the seepage of dissolved substances from decomposing garbage into the soil.

Correct! Wrong!

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Leaching is the seepage of dissolved substances from decomposing garbage into the soil.

____ are later converted into parks or other places of public use.

Correct! Wrong!

Landfills are later converted into parks or other places of public use.

Many sugar mills use ____, the left over after juice is extracted, from sugar cane, to produce electricity.

Correct! Wrong!

Many sugar mills use bagasse, the left over after juice is extracted, from sugar cane to produce electricity.

The method of preparing compost for the plant with the help of earthworms is called ____.

Correct! Wrong!

The method of preparing compost for the plant with the help of earthworms is called vermicomposting.

Converting plant and animal waste including that from kitchen, into manure, is called ____.

Correct! Wrong!

Converting plant and animal waste including those from kitchen, into manure is called composting.

In villages, animal excreta and farm waste are used to produce ____.

Correct! Wrong!

In villages, animal excreta and farm waste are used to produce gobar gas.

Which of the following is the best method of waste disposal?

Correct! Wrong!

Composting is the best method of waste disposal. A landfill uses a lot of land. Incineration produces polluting gases. Throwing waste in open pits cause pollution.

____ present in the soil, act on the waste and convert it into compost.

Correct! Wrong!

Bacteria present in the soil, act on the waste and convert it into compost.

To ____ waste means to burn it.

Correct! Wrong!

To incinerate waste means to burn it. Waste can be burnt in huge incinerators.

Layers of waste are buried in huge pits with a layer of soil in between. This is done in ____.

Correct! Wrong!

Layers of waste are buried in huge pits with a layer of soil. This is done in composting.

Which of the following waste is not used to generate fuel gases?

Correct! Wrong!

Farm waste, municipal solid waste and animal excreta can be used to generate fuel gas but plastic and metal can be used as there are non-biodegradable substances and should be recycled.

____ is a fuel made by the decomposition of organic waste.

Correct! Wrong!

Biogas is a fuel made by the decomposition of organic waste.

In producing fuel gas ____ act on waste.

Correct! Wrong!

In producing fuel gas micro organisms act on waste.

Separating waste into biodegradable and recyclable is called ____.

Correct! Wrong!

Separating waste into biodegradable and recyclable is called segregation.

The best way of disposal of dried leaves is ____.

Correct! Wrong!

The best way of disposal of dried leaves is composting.

Which of the following is true for segregation?

Correct! Wrong!

Segregation is the separation of biodegradable and recyclable waste.

____ is mostly done by a ragpicker.

Correct! Wrong!

Ragpickers segregate the waste collected at collection points.

Landfills are commonly used for the disposal of ____.

Correct! Wrong!

Landfills are commonly used for the disposal of solid waste.

Which of the following is the odd one?

Correct! Wrong!

In this context segregation says about separation of substances. While others dealing with changing the substance from one form to another.

Which of the following waste disposal methods produce polluting gases?

Correct! Wrong!

Incineration is the waste disposal method that produces polluting gases.

ICSE Class 10th Biology 12 - Waste MCQs
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