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What are the possible harmful effects because of fossil fuels?

___ is the layer formed on soil due to the decomposition of dead organisms.

1. humus

   
   

What was John's answer?

The amount of usable water on the Earth is

Union Government has proposed National Action Plan on Climate Change (NAPCC) to meet the challenges and impact of climate change through 8 National Missions and National Water Mission is one of them. Which of the following has been included in the five Identified Goals of The Mission?

Which of the above statements is/are correct?

Digestion of food in our body is an example of a ___ reaction.

We cannot predict what is kept in a cardboard carton because:

______ is a process in which rain water seeps inside the ground.

Q8. Consider the following statements about Flood Plains:

1. A floodplain or flood plain is an area of land adjacent to a stream or river which stretches from the banks of its channel to the base of the enclosing valley walls.

2. When inundated with water, floodplains act as natural filters, removing excess sediment and nutrients, which can degrade water quality and increase treatment costs.

Which of the statements are correct?

Which of the following is not matter?

A balloon inflates when the air is pumped into it. Which is the correct conclusion which can be derived out of this?

Question 15

Water kept in sunlight gets heat from the sun and is evaporated. But how does water kept under the shade of a tree also gets evaporated? Explain.

Which part of the jute plant is used for getting jute fibre? [1 MARK]

Due to which of the following reason perfumes are made up of volatile liquids?

Where do we get water from? [1 MARK]

Which among these is true about solids?

The below articles are made up of which synthetic fibre? Explain its characteristics. [2 MARKS]

Why solid do not flow?

Liquid changes into solid on cooling but the batter of a cake changes into a cake on heating in an oven. Why?

Match the given phrases with the images and give reason for each. [5 MARKS]
i.) Natural phenomenon for dispersion
ii.) 24 frames per second
iii.) Illuminated Object
iv.) For healthy eye sight
v.)Luminous object

The discoloration of the white marble of India's iconic Taj Mahal is mainly due to ___.

Question 7 (a)

Find the odd one out from the following:
Chair, Bed, Table, Baby, Cupboard

Which of the following statement/s describe the solution?

STATEMENT 1: A solution is a homogenous mixture of two or more substances.

STATEMENT 2: Alloys as solid solutions.

STATEMENT 3: A solution is a heterogeneous mixture of two or more substances.

STATEMENT 4: Lemonade is an example of a solution.

What will happen when we will blow a bubble in space or a vaccum

Q33. The city of Delhi has severe air pollution, 80 percent of which is caused by the exhaust fumes of cars. In order to reduce the number of cars on the road, the government is raising taxes on the cost of buying and running a car by 20 percent. This tax increase, therefore, will significantly reduce air pollution in Delhi.

Which of the following, if true, most seriously weakens the argument above?

Heating tar while making road is an example of:

In a chemical formula of a diatomic ionic compound, the charge on the anion is -3. Find out the charge on the cation.

The physical process of converting liquid to gas is called ___________________.

Identify the process 'X' and 'Y' in the below image from the given options.

Question 2 (e)

State for the following whether it is due to evaporation or condensation:
Steam rising from a hot girdle when water is sprinkled on it.

Mixture of oil and water can be separated using:

Which of the following helps life to sustain in water?

Question 20

On a Sunday morning Paheli’s friend visited her home. She
wanted to see some flowering plants in the nearby garden.
Both of them went to the garden. While returning from the
garden they also observed some flowering plants on the road
side. But to their surprise they found that the leaves and flowers of these roadside plants were comparatively very dull. Can you help them to know why?

Which of the following shows rigid nature?

Metals that melt in hand are:

In villages, we can see that women separate the grains from the chaff by throwing the grains from a certain height to fall back into a vessel.What is this process? Explain.[3 MARKS]

How is spinning done on large scale?

Sugar is dissolved in water to form sugar solution. In this case sugar is a ________.

Question 22

Match the terms given in Column I with the statements given in Column II

$\begin{array}{cc}\text{Column I}& \text{Column II}\\ \text{(a) Weaving}& \text{(i) A single yarn used to make fabric}\\ \text{(b) Knitting}& \text{(ii) Combing of cotton fibres to remove seeds}\\ \text{(c) Spinning}& \text{(iii) Yarns are made from these thin strands}\\ \text{(d) Ginning}& \text{(iv) These are spun from fibres and then used to make fabrics}\\ \text{(e) Fibre}& \text{(v) Process of arranging two sets of yarns together to make a fabric}\\ \text{(f) Yarn}& \text{(vi) Process of making yarn from fibres}\end{array}$

In what ways are three states of matter different from each other?

Fixing of iron rim to the wooden wheel of a cart involve
s:

We have fibres, namely synthetic and natural. When talking about the synthetic fibres, we see that they are very different in properties from each other. For instance, Rayon is a synthetic fibre but it is very different from other synthetic fibres. How?

Name the technique shown below which separates stones of different size.