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

boiling cocoons, smoke, diesel fumes from the machines, and poor ventilation cause respiratory ailments such as chronic bronchitis and asthma. From immersion in scalding water and handling dead worms, reelers' hands become raw, blistered, and sometimes infected.

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why not available cbsc sample paper for final exam for class 7

Posted by Ayushman Singh 2 years, 10 months ago

CBSE > Class 07 > Science

0 answers

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Bouncing back of light in same medium is called

Posted by Dhairya Patil 2 years, 10 months ago

CBSE > Class 07 > Science

5 answers

Divanshi Banerjee 2 years, 9 months ago

Refelction

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Shivangi 4574 2 years, 10 months ago

Reflection is the bouncing back of light in the same medium

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Jiaul Hoque 2 years, 10 months ago

Reflection

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Hiranya P 2 years, 10 months ago

Reflection

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Mahi Yadav 2 years, 10 months ago

Reflection

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Fat is completely diggested in the _________

Posted by V Gamer India 2 years, 10 months ago

CBSE > Class 07 > Science

5 answers

Shivangi 4574 2 years, 10 months ago

Small intestine

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Harshit Dubey 2 years, 10 months ago

Small intestine

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Trishtha Patil 2 years, 10 months ago

Small intestine

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Himanshi Gautam 2 years, 10 months ago

Jsiaoa

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Mahi Yadav 2 years, 10 months ago

Fat is completely diggested in the small Intestine

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What is happyness

Posted by Pushpa Pushpa 2 years, 10 months ago

CBSE > Class 07 > Science

5 answers

Pushpa Pushpa 2 years, 9 months ago

The expression when we feel happy ,joy,plasent emotions and the correct spelling is happiness is it

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Lakshmi Venkata Naga Sai Naga Sai 2 years, 10 months ago

Puspa pushparaj taggadala

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Ananya Ananya 2 years, 10 months ago

The expression when we feel happy ,joy,plasent emotions and the correct spelling is happiness is

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Muskan Vats 2 years, 10 months ago

What is ocean currents

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Muskan Vats 2 years, 10 months ago

Hii

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What is the difference between rate of percolation and the amount of water retained?

Posted by Manmeet Singh 2 years, 10 months ago

CBSE > Class 07 > Science

2 answers

Pradeep Jadhav 2 years, 9 months ago

Rate of percolation means the amount of water that is that goes in the sun and and the amount of water retained means

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Mahi Yadav 2 years, 10 months ago

Rate of percolation is the amount of water percolated per unit time through soil. Whereas the amount of water retained is the amount of water absorbed by soil.

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Good

Posted by Suheb Shaikh 2 years, 10 months ago

CBSE > Class 07 > Science

0 answers

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Describe the drip irrigation method. What is its advantage?

Posted by Akankshi Chaudhary 2 years, 10 months ago

CBSE > Class 07 > Science

2 answers

Shivangi 4574 2 years, 9 months ago

Drip irrigation is a type of irrigation in which we make a structure of plastic pipes and connect the structure to the root of plants . Advantage od drip irrigation are : 1- It saves water 2- It save time

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Mahi Yadav 2 years, 10 months ago

Drip irrigation is the most efficient water and nutrient delivery system for growing crops.

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Watwr cycle

Posted by Krittika Khande 2 years, 10 months ago

CBSE > Class 07 > Science

1 answers

Riddhi Kumari 2 years, 10 months ago

Water cycle is a life time proces

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How does the process of fertilisation take place in flowers

Posted by Divyansh . 2 years, 10 months ago

CBSE > Class 07 > Science

1 answers

Jahanvi Singh 2 years, 10 months ago

I don't know??

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What is the sign of water

Posted by Jasmine Thakur 2 years, 10 months ago

CBSE > Class 07 > Science

5 answers

Divanshi Banerjee 2 years, 9 months ago

H2O is the SYMBOL (Sign) of water not ??

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Anushri Gupta 2 years, 10 months ago

h2o

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Jahanvi Singh 2 years, 10 months ago

H2o is the sign of Water

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Bhavya Gupta 2 years, 9 months ago

? silly questions

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Sharvari Yewale 2 years, 9 months ago

? silly questions

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Define electric circuit

Posted by Luv Gupta 2 years, 10 months ago

CBSE > Class 07 > Science

3 answers

Shivangi 4574 2 years, 10 months ago

An electric circuit is a path in which electrons (or current) flow. If the circuit is incomplete or broken, the current doesn't flow. This type of circuit is called an Open Circuit. If the circuit is complete, the current flows. ... An electric circuit is represented by a Circuit Diagram.

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Mahi Yadav 2 years, 10 months ago

An electronic circuit is composed of individual electronic components, such as resistors, transistors, capacitors, inductors and diodes, connected by conductive wires or traces through which electric current can flow.

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Rohitha S 2 years, 10 months ago

The path along with the electric current flows is called an electric circuit

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Do plasma contain blood cells

Posted by Ajitesh Mishra 2 years, 10 months ago

CBSE > Class 07 > Science

5 answers

Jahanvi Singh 2 years, 9 months ago

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Ansh Yadav 2 years, 9 months ago

No plasma blood help When your hand cut so plasma stop Blood to go there place

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Archana Gupta 2 years, 10 months ago

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Rohitha S 2 years, 10 months ago

Yes

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Vagisha M Srivastava 2 years, 10 months ago

Yes

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Varun

Posted by Sunil Rajput 2 years, 10 months ago

CBSE > Class 07 > Science

2 answers

Divanshi Banerjee 2 years, 9 months ago

Well this is an interesting question. Varun = Water, It also means water god

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B T S 2 years, 10 months ago

What is flash

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What is sporangium?

Posted by Farhan Moghees 2 years, 10 months ago

CBSE > Class 07 > Science

1 answers

Rawnak Singh 2 years, 10 months ago

In ferms and lower plant, a receptacle in which asexual spores are formed

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What is spore?

Posted by Farhan Moghees 2 years, 10 months ago

CBSE > Class 07 > Science

1 answers

Prachi M. Parmar 2 years, 9 months ago

In biology, a spore is a unit of sexual or asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavourable conditions. Spores form part of the life cycles of many plants, algae, fungi and protozoa.

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What is Zygote?

Posted by Farhan Moghees 2 years, 10 months ago

CBSE > Class 07 > Science

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What is Hypha?

Posted by Farhan Moghees 2 years, 10 months ago

CBSE > Class 07 > Science

1 answers

Jiaul Hoque 2 years, 10 months ago

Hypha is a single filament in fungus that can reproduce either sexually or asexually

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Why is water called unique substances

Posted by Aishwarya Aishwarya 2 years, 10 months ago

CBSE > Class 07 > Science

3 answers

Ashish Kharade 2 years, 10 months ago

Fill in the blanks

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Tejas Lodhi 2 years, 10 months ago

Water has the unique ability to dissolve many polar and ionic substances. This is important to all living things because, as water travels through the water cycle, it takes many valuable nutrients along with it! Water has high heat capacity

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Archana Maharana 2 years, 10 months ago

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Why is it necessary to excrete waste heart

Posted by Shlok Vhalgude 2 years, 10 months ago

CBSE > Class 07 > Science

3 answers

Mahi Yadav 2 years, 10 months ago

The waste materials produced during the metabolic activities are toxic to the body and must not be accumulated inside, and therefore it has to be excreted out from the body by the process of excretion.

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Rohitha S 2 years, 10 months ago

I don't now

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Tejas Lodhi 2 years, 10 months ago

I don't know

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Smoking isinjorious to health how true this explane

Posted by Madiha Aqil 2 years, 10 months ago

CBSE > Class 07 > Science

2 answers

Ashish Meena 2 years, 10 months ago

Smoking destroys lung tissue gradually due to which breathing becomes very difficult .it causes lung cancer.it causes heart disaeas.it damages the health of a non smoker who inhale the air containing tobacco smoke.

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Gf Yuo 2 years, 10 months ago

When we smoking the somoke is go in our lung and damage them

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Describe the process of making sugar crystals

Posted by Anjali Manikpuri 2 years, 10 months ago

CBSE > Class 07 > Science

1 answers

Sia ? 2 years, 10 months ago

The procedure is really easy.

1) Dissolve the sugar in the boiling water.

2) Add a few drops of food coloring and flavor, if desired.

3) Allow the solution to cool a bit before pouring it into your jar.

4) Pour the sugar solution into a jar.

5) Place the container somewhere it won't be disturbed.

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What are the source of energy

Posted by Aryan Rawat 2 years, 10 months ago

CBSE > Class 07 > Science

2 answers

Jahanvi Singh 2 years, 10 months ago

Food and sunlight

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Sneha Kumari 2 years, 10 months ago

Food is the source of energy

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Effects of smoking

Posted by Kulashri Sharma 2 years, 10 months ago

CBSE > Class 07 > Science

2 answers

Ashish Meena 2 years, 10 months ago

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Sneha Kumari 2 years, 10 months ago

It cause cancer

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what is mean by breathing

Posted by Vaghela Bhargav 2 years, 10 months ago

CBSE > Class 07 > Science

5 answers

Jahanvi Singh 2 years, 10 months ago

Devanshi answer is like my answer

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Ashish Meena 2 years, 10 months ago

Taking in and out the air

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Ashish Meena 2 years, 10 months ago

Taking in and out the air

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Devanshi Jena 2 years, 10 months ago

Breathing is a process where exchange of gas happens. It does not use any chemical process and it's not ATP

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Anonymous Anonymous 2 years, 10 months ago

Something we need to survove

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Why do we get hiccups? Explain it.

Posted by Farhan Moghees 2 years, 10 months ago

CBSE > Class 07 > Science

1 answers

Apoorva 2 years, 10 months ago

Hiccups are caused by involuntary contractions of your diaphragm — the muscle that separates your chest from your abdomen and plays an important role in breathing. This involuntary contraction causes your vocal cords to close very briefly, which produces the characteristic sound of a hiccup.

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A _________ is a short piece of branch of a plant having a node.

Posted by Anjali Singh Thakur 2 years, 10 months ago

CBSE > Class 07 > Science