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  • 2 answers

Zaima Anjum 2 years, 4 months ago

the minerals contain a high percentage of a particular metal which can be profitaly extracted fom it,these minerals are called ores

Kanu Choudhary 2 years, 4 months ago

Those minerals from which we can extract metals profitably and conveniently are called ores
  • 1 answers

Sudipa Biswas 2 years, 4 months ago

I didn't understand anything Are you asking for exercise questions?
  • 3 answers

Aakriti Dubey 2 years, 4 months ago

Exocrine system is associated with pouring their secretions directly into blood. Eg: Adrenal glands. Endocrine system is associated with pouring their secretions in ducts. Eg: Salivary glands However, some glands act as both. Eg: Pancreas

Sudipa Biswas 2 years, 4 months ago

Endocrine - glands which secreates there hormones inside the body . Eg . Adrenaline gland Exocrine -glands which secreates there hormones outside the body. Eg. Sweat gland

Mahir Patel 2 years, 4 months ago

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  • 2 answers

Pradeep Yadav 2 years, 4 months ago

Water of crystallization is the number of water molecules present in one formula unit of salt

Sudipa Biswas 2 years, 4 months ago

Water of crystallization is the amount of water molecules which are present in one unit of salt.
  • 2 answers

Aakriti Dubey 2 years, 4 months ago

Pituitary gland is known as master gland because it regulates the functioning of all other hormones in our body. Hormones are known as chemical messengers or information molecules because the regulate various body functions in our body acting chemically.

Shashikant Nayak 2 years, 4 months ago

Hypothalamus is the master of master gland and pituitary gland is known as master gland
  • 3 answers

Dibya Kri 2 years, 4 months ago

Nutrients are necessary for our body to carryon the life processes for our survival.

Sudipa Biswas 2 years, 4 months ago

Nutrients are necessary for our body so that we can proform our day to day activities ( life processes)

Saksham Acharya 2 years, 4 months ago

Living organism perform different functions for their survival to which we call as life process. For performing these processes we need energy and this energy is obtained through nutrients that's why nutrients are necessary in the body.
  • 2 answers

Sarthak Malviya 2 years, 4 months ago

Beacause of the bond structure of the alcohol

Sahana Parashetti 2 years, 4 months ago

ions not breakdown in alcohol because in alcohol ions are present in aqueous solution
  • 1 answers

Dangu 🍡 2 years, 4 months ago

After fertilisation the zygote divides several times to form an embryo within the ovule . The ovule develops a tough coat and is gradually converted into a seed . The ovary grows rapidly and ripens to form a fruit.
  • 4 answers

Sahana Parashetti 2 years, 4 months ago

nephron is a very most important diagram in this chapter because from may ask in a case be study for 5 marks or 6 marks the possible take questions I am more they may ask draw a neat labelled diagram of functional and structural unit of a kidneyor they asor they ask how the urine formation is formed in the Kidney explain with a diagram

Saksham Acharya 2 years, 4 months ago

Nephrone is the most important diagram in this chapter. CBSE also ask either the diagram of nephrone Or neurone. Although it is just an observation of past few years question paper. My honest suggestion is that U should practice the diagram of alimentary canal, villi, and human heart as well because a simple question i.e to explain their structure and function is usually asked

Drashti Makan 2 years, 4 months ago

Heart digram

Happy Singh 2 years, 4 months ago

Human excretory system and it had came in my exam
  • 4 answers

Raunak Patel 2 years, 4 months ago

Yes, it is very important for continuation of species

Sahana Parashetti 2 years, 4 months ago

reproduction is necessary for an organism because it is a very important for the continuation of a species. on the earth and it replaces the dead once

Saksham Acharya 2 years, 4 months ago

Reproduction is not necessary for the survival of an organism that's why it is also not a life process but it is important for the continuation of a species, without reproduction it is impossible for an species to exist for long period. Hence the conclusion is reproduction is essential / necessary .

Miss Anshi 2 years, 4 months ago

Yes
  • 3 answers

Astha Gautam 2 years, 4 months ago

Displacement reaction means high reactive metal displace low reactive metal and double displacement reaction mutual exchange of their ions

Sahana Parashetti 2 years, 4 months ago

displacement means high react to metal displacesdisplacement means high react to metal displaces less react to metal but in double displacement reaction the reaction takes place by the mutual exchange of their ions

Rekha Rekha 2 years, 4 months ago

The chemical reaction in which more reactive metals dispalce less reactive metals from its compound is called displacement reaction
  • 0 answers
  • 5 answers

Drashti Makan 2 years, 4 months ago

Heart, breathing, Digestion are involuntary movement

Bipin Singh 2 years, 4 months ago

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Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

Gaurav Singh 2 years, 4 months ago

This is best channel for class 10 boards

Gaurav Singh 2 years, 4 months ago

And watch old videos free of cost because new videos are paid.

Gaurav Singh 2 years, 4 months ago

Watch Rajan sir YouTube channel for study class 10 science and maths and subscribe
  • 5 answers

Aakriti Dubey 2 years, 4 months ago

Abscisic acid

Rishabh Mall 2 years, 4 months ago

Absisic acid

Gaurav Singh 2 years, 4 months ago

This content has been hidden. One or more users have flagged this content as inappropriate. Once content is flagged, it is hidden from users and is reviewed by myCBSEguide team against our Community Guidelines. If content is found in violation, the user posting this content will be banned for 30 days from using Homework help section. Suspended users will receive error while adding question or answer. Question comments have also been disabled. Read community guidelines at https://mycbseguide.com/community-guidelines.html

Few rules to keep homework help section safe, clean and informative.
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  • Don't use this platform for chatting, social networking and making friends. This platform is meant only for asking subject specific and study related questions.
  • Be nice and polite and avoid rude and abusive language. Avoid inappropriate language and attention, vulgar terms and anything sexually suggestive. Avoid harassment and bullying.
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Remember the goal of this website is to share knowledge and learn from each other. Ask questions and help others by answering questions.

Ishu Jangid 2 years, 4 months ago

Abscisic acid (ABA) is the sole plant hormone known to maintain seed dormancy; it acts through a gene expression network involving ABSCISIC ACID INSENSITIVE the transcription factor 3 (ABI3).

Varun Pandey 2 years, 4 months ago

Absisic acid
  • 1 answers

Aditya Prajapati 2 years, 3 months ago

The hormone present in animal is called animal hormone
  • 1 answers

Sowmya Sowmya 2 years, 5 months ago

The two main physical functions of oxytocin are to stimulate uterine contractions in labor and childbirth and to stimulate contractions of breast tissue to aid in lactation after childbirth.
  • 3 answers

Choudhary Ji 2 years, 4 months ago

Human eyes

Chhavi Gupta 2 years, 4 months ago

Bro we can't post pictures here

Dharsan Dharsna 2 years, 4 months ago

Malleable : substance that can be beaten into thin sheets are called malleable. For example most of the metals are malleable
  • 1 answers

S P 2 years, 4 months ago

Sepals and petals
  • 4 answers

Sumit Rajput 2 years, 5 months ago

Rapidly respond to an external stimulus

Isha Siwach 2 years, 5 months ago

Quick,immidiate response to stimilus called reflex actions

Account Deleted 2 years, 5 months ago

Stimuli active hota hai

Himani Dua 2 years, 5 months ago

Jaab haam koi action fast krte hh bina kuch soche ye hamre mid Brian me hota hh
  • 4 answers

Bhavya Tiwari 2 years, 5 months ago

To check Co2 gas or not

Sumit Rajput 2 years, 5 months ago

In lime water we will pass co2 gas then lime water changes into milky soln.

Student Cbse 2 years, 5 months ago

It is a test of a CO2 When CO2 pass through lime water the lime water becomes milky as it becomes calcium carbonate and when excessive amount of CO2 pass the milkyness disappears and it becomes colourless

Account Deleted 2 years, 5 months ago

Check whether it is acidic or neutral
  • 3 answers

Sumit Rajput 2 years, 5 months ago

Because plants needs to energy like sunlight that why photosynthesis is an endothermic reaxn.

Aisha Quadri 2 years, 5 months ago

As the sun's rays or sunlight is received during the procedure of photosynthesis, it is considered as an endothermic reaction.

Sneha Singh 2 years, 5 months ago

Because sunlight energy is absorbed by green plants during this process
  • 1 answers

Aisha Quadri 2 years, 5 months ago

Fe(OH)3
  • 3 answers

Krish Yadav 2 years, 4 months ago

Thank you 🙏🏻

Aisha Quadri 2 years, 5 months ago

Because it is a immediate response to a stimuli and it does not involve brain....it is relatively fast process

Ved Khemekar 2 years, 5 months ago

Because it takes quick action than reaching directly to the brain then circulating the signal
  • 1 answers

Harish Nandha 2 years, 4 months ago

HFCs can be used
  • 1 answers

Gaurav Kumar 2 years, 5 months ago

Blood vessels are the passage through which blood circulate in the body . There are two types of blood vessels.ARTRY and VEIN
  • 0 answers
  • 1 answers

Ragani Singh 2 years, 5 months ago

2,8,18,3
  • 1 answers

Tharun Kumaar 2 years, 5 months ago

All respiratory organs have large surface area to get enough oxygen or help with the exchange of gasses.​ They are thin-walled for easy diffusion of gases and substances. They have rich supply of blood or the conducting fluid present in the body for transporting respiratory gases to the tissues of the body.

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