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

When an object repeat it's motion after some time, this motion is called periodic motion. EXAMPLES :- motion of pendulum. motion of see- saw. motion of our hand while running.

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Explain what you understand by unisexual reproduction

Posted by Gaurav Kumar 7 years, 6 months ago

CBSE > Class 07 > Science

3 answers

K M 7 years, 6 months ago

the method of reproduction in which the individual not require the involvement of any other individual of the same species is called asexual reproduction.

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Kanishika Nahal 7 years, 6 months ago

Only one *** is there one parents are involved

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Kanishika Nahal 7 years, 6 months ago

It is a type of asexual reproduction Occurs in lower plant Only one *** is there No need of seed.??

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What is formula of water

Posted by Kunal Kokare 7 years, 6 months ago

CBSE > Class 07 > Science

7 answers

Vikas Rajput 7 years, 6 months ago

H2O

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K M 7 years, 6 months ago

H2O

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Tanmay Navgire 7 years, 6 months ago

H20

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Kanishika Nahal 7 years, 6 months ago

H2o

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Swap Nanil 7 years, 6 months ago

H²O

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Siya Mishra 7 years, 6 months ago

H²0

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Himank Joshi 7 years, 6 months ago

H2O

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Describe the purpose of 'scouring in the production of wool

Posted by Harjot Singh 7 years, 6 months ago

CBSE > Class 07 > Science

2 answers

K M 7 years, 6 months ago

the fleece of Sheep contains a lot of dirt and greese.the fleece is therefore watched with detergent in hot water in large tanks.suitable machines also used for this process.this process is called scoring.

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Aniket Behera 7 years, 6 months ago

The process in which the hair is washed throughly in a tank to remove grease is called scouring

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How do wells get charged

Posted by Nithayashree V 7 years, 6 months ago

CBSE > Class 07 > Science

1 answers

Aniket Behera 7 years, 6 months ago

When it was raining the water seep down to the underground by infiltration so, the ground water is recharged that come to well and by this the well get charged

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Why is breathing called an involuntary action

Posted by Harshit Bansal 7 years, 6 months ago

CBSE > Class 07 > Science

1 answers

Yogita Ingle 7 years, 6 months ago

Involuntary actions are controlled by the medulla of the hind brain. However, breathing is considered as both voluntary and involuntary action. Since in condition of Apnea, lungs are force to breath. So breathing is involuntary actions.

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How is increase in population responsible for shortage of water

Posted by Surya Teja 7 years, 6 months ago

CBSE > Class 07 > Science

2 answers

Riya Taneja 7 years, 6 months ago

As the population is increasing day by day , so the demand of construction of houses, shops, offices, etc is also increasing. This decreases the open areas like park and playgrounds etc. And thus decreased the seepage of rainwater into the ground

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Surya Teja 7 years, 6 months ago

Increase in population demand for water has increased whereas its resourseshave depleted. This causes a shortage of scarcity of water

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What is the chemical formula of photosynthesis

Posted by Daksh Mathur 7 years, 6 months ago

CBSE > Class 07 > Science

3 answers

Vikas Rajput 7 years, 6 months ago

carbon dioxide+water sunlight_______chlorophyll carbohydrate+oxygen

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Abhijeet Kumar 7 years, 6 months ago

6CO2 + 12H2O sunlight/ chlorophyll C6H12O6 +6O2

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Deekshith Reddy 7 years, 6 months ago

CO2+H2O ------------->(in the presence of chlorophyll and sunlight) C6H12O6 + O2 + H2O

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All chapter

Posted by Bhumika Bisht 7 years, 6 months ago

CBSE > Class 07 > Science

0 answers

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What is law of segregation.

Posted by Riya Raj 7 years, 6 months ago

CBSE > Class 07 > Science

0 answers

ANSWER

Blwowkw

Posted by Geeta Arora 7 years, 6 months ago

CBSE > Class 07 > Science

0 answers

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Difference between reversible and irreversible change

Posted by Ramandeep Kaur 7 years, 6 months ago

CBSE > Class 07 > Science

1 answers

Swayam Virmani 7 years, 6 months ago

The change that can be reversed is reversible like melting of ice and crystallisation. Most of the physical changes are reversible. The change that cannot be reversed are irreversible changes for example Burning of wood, Rusting etc. Most of the chemical changes are irreversible.

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Explain reproduction in plant?

Posted by Venugopal Kallur 7 years, 6 months ago

CBSE > Class 07 > Science

0 answers

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If a man sitting in a train he have a ball,he through vertically upward in a train where does the ball go?

Posted by Ayush Rai 7 years, 6 months ago

CBSE > Class 07 > Science

0 answers

ANSWER

What is water table ??

Posted by Riya Taneja 7 years, 6 months ago

CBSE > Class 07 > Science

5 answers

K M 7 years, 6 months ago

upper layer of groundwater is called water table.

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Kanishika Nahal 7 years, 6 months ago

The upper most layer of water is called water table.

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Swayam Virmani 7 years, 6 months ago

The upper most layer of water in ground is water table

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Richa Sharma 7 years, 6 months ago

Top level of groundwater is called water table

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Shafin Shaikh 7 years, 6 months ago

The upper limited of ground water is called water table

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What is Greenwich mean time

Posted by Janak Sitlani 7 years, 6 months ago

CBSE > Class 07 > Science

1 answers

Harshit Bansal 7 years, 6 months ago

Greenwich meridian mean time is the local time at Greenwich , london, situated on the prime meridian ( 0 Degree longitude) . It has been used as the basis for calculating time in various parts of the world

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Multiple choose question

Posted by Shiddhant Nayak 7 years, 6 months ago

CBSE > Class 07 > Science