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Because fertility here refers to the production of sperms or semen....
women have a menopause that is a pause in the production of reproductive cells called ova or egg cells....
however, in regular cases, i.e. unless a man has gone through disease that makes him lose fertility like tuberculosis(TB), the production of his reproductive cells called sperms doesn't stop and therefore he always remains fertile until and unless infected by diseases like TB..

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Aagya tum??? ???

Posted by Deepika .. 6 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Deepika .. 6 years, 1 month ago

Oye abhishek ..reply kr yha p

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ANSWER

aluminium is more reactive than iron yet there is less corrosion of aluminium as compared to iron when both are composed to air. Why?

Posted by Rashi Aashi 6 years, 1 month ago

CBSE > Class 10 > Science

4 answers

Ahad Warsi 6 years, 1 month ago

Both are more then hydrogen

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Shivang Sharma 6 years, 1 month ago

Alluminium oxide protect alluminium from reacting with water whereas iron can easily react with watet

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Sunil Lawande 6 years, 1 month ago

Alluminium react with steam water as it has alluminium oxide so it can't react with water,whearas iron can react with moisture (water)to from iron oxide layer

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⚜??Brainly Buddy??⚜ 6 years, 1 month ago

Al₂O₃ when formed acts as protective layer and prevent furthur corrosion

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Why tarnished Copper vessels are clean with tamarind juice?

Posted by Rashi Aashi 6 years, 1 month ago

CBSE > Class 10 > Science

3 answers

⚜??Brainly Buddy??⚜ 6 years, 1 month ago

lemon ki jagah tamarind krlena . Isme acid + metal carbonate (here CuCO3 ) and metal hydroxide (here Cu(OH)2) ki reaction batani hai

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Rashi Aashi 6 years, 1 month ago

Can you please explain this

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⚜??Brainly Buddy??⚜ 6 years, 1 month ago

lemon juice react with Cu(OH)₂ and CaCO₃ and remove the tarnished layer

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ANSWER

Why is rate of photosynthesis is more during a sunny day as compared to a cloudy day

Posted by Aditi Goel 6 years, 1 month ago

CBSE > Class 10 > Science

6 answers

Ahad Warsi 6 years, 1 month ago

Because of more sunlight

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Shivang Sharma 6 years, 1 month ago

During photosynthesis sunlight is absorbed

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Dr. Ravi ♥️(See U On19 Feb) ??Offline?? 6 years, 1 month ago

Ans- bcoz rate of photosynthesis depends on sunlight.....and its good in a sunny day

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Dr. Ravi ♥️(See U On19 Feb) ??Offline?? 6 years, 1 month ago

Sorry ...not in this question

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Dr. Ravi ♥️(See U On19 Feb) ??Offline?? 6 years, 1 month ago

Go and read land breeze and sea breeze.....may be help u a lots....in this question

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⚜??Brainly Buddy??⚜ 6 years, 1 month ago

sunlight is more on sunny day

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Explain how does the butter in your food get digested and absorbed in the body

Posted by Aditi Goel 6 years, 1 month ago

CBSE > Class 10 > Science

3 answers

Shivang Sharma 6 years, 1 month ago

Butter contain fats we know that fat is converted to glycerols by bile juice and to fatty acid by lipase

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Shreya S❤ 6 years, 1 month ago

Lipase enzyme works on fats And Products formed are absorbed by lacteals in sm..intes..

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⚜??Brainly Buddy??⚜ 6 years, 1 month ago

butter has fats which are converted to glycerol and fatty acids after digestion

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How would non secretion of HCl in stomach affect food digestion

Posted by Aditi Goel 6 years, 1 month ago

CBSE > Class 10 > Science

3 answers

Yogita Ingle 6 years, 1 month ago

Hydrochloric acid is discharged by the glands present on the abdomen walls. It dissolves particles of food and generates an acidic mechanism. Therefore, if HCl were not secreted in the abdomen, then pepsin would not be initiated. This would influence protein digestion. The HCl eliminate the germs and incite the enzyme pepsinogen. If the HCl is not discharged in the stomach the protein will not get assimilated and bacteria may not be killed which precipitate the disease in our body.

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Ahad Warsi 6 years, 1 month ago

It have pepsin

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Diksha ? 6 years, 1 month ago

The function of protein digesting enzyme pepsin will get affected..

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What will happen if diaphragm is ruptured

Posted by Aditi Goel 6 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Dr. Ravi ♥️(See U On19 Feb) ??Offline?? 6 years, 1 month ago

If diaphragm ruptured then , pressure becomes constant outside and inner side of body and person unable to breathe and maybe not cure at spot then person die...

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In which direction does lymph flow. Also state its composition

Posted by Aditi Goel 6 years, 1 month ago

CBSE > Class 10 > Science

2 answers

Aditi Goel 6 years, 1 month ago

Why lymph flow is unidirectional??

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Akshat Sharma 6 years, 1 month ago

It flows in unidirection it is white colour connective tissue. Lymph is composed of lymph plasma and lymph luecocytes

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Why rate of photosynthesis in plants is low both at low and high temperature

Posted by Aditi Goel 6 years, 1 month ago

CBSE > Class 10 > Science

2 answers

Shreya S❤ 6 years, 1 month ago

Nice question?

1Thank You

Shreya S❤ 6 years, 1 month ago

At low temp enzymes gets deactivated At high temp enzynes work ineffeciently

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ANSWER

Why is the inner wall of alimentary canal not digested although the digestive enzymes can digest all the material that makes cell

Posted by Aditi Goel 6 years, 1 month ago

CBSE > Class 10 > Science

4 answers

??Geetha Sree ?? 6 years, 1 month ago

The digestive enzymes remain inactive until the food provides an acidic medium for it to get activated. So until the enzymes are inactive there is no harm caused to the alimentary canal. Once they get active , they only act on food particles.

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Shivang Sharma 6 years, 1 month ago

Because alimentary canal is coated with mucus and mucus protect alimentary canal from digestion

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⚜??Brainly Buddy??⚜ 6 years, 1 month ago

because they are inactive till food enters in it

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Dr. Ravi ♥️(See U On19 Feb) ??Offline?? 6 years, 1 month ago

Due to the presence of mucus layer , form by mucus secreted from goblet cells ....

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How does 1.temperature 2. Water 3. Carbondioxide, affect the productivity in process of photosynthesis

Posted by Aditi Goel 6 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 6 years, 1 month ago

The raw materials for photosynthesis are carbon dioxide and water. The green plants take carbon dioxide from air for photosynthesis. The carbon dioxide gas enters the leaves of the plants through the stomata present on their surface. The water required by the plants for photosynthesis is absorbed by the roots of the plants from the soil through the process of osmosis. The water absorbed by the roots is transported upwards through the xylem vessels to the leaves where it reaches the photosynthetic cells and utilized in photosynthesis.

The conditions for photosynthesis are sunlight, chlorophyll, carbon dioxide and water.

Factors affecting the rate of photosynthesis are (i) Light (ii) Carbon dioxide (iii) Water (iv) Temperature (v) Mineral elements.

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Explain why leaf is complementary to its functions

Posted by Aditi Goel 6 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 6 years, 1 month ago

Massive amounts of gaseous exchange takes place in the leaves through tiny pores called stomata for the purpose of photosynthesis. The opening and closing of stomatal pores is controlled by the guard cells, when water flows into the guard cells, they swell, become curved and cause the pore to open whereas when the guard cells lose water, they shrink, become straight and close the stomatal pore.

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Why lung alveoli are covered with blood capillaries

Posted by Aditi Goel 6 years, 1 month ago

CBSE > Class 10 > Science

2 answers

Uday Thadani 6 years, 1 month ago

because of exchange of gases mainly O²and co²

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Dr. Ravi ♥️(See U On19 Feb) ??Offline?? 6 years, 1 month ago

For the diffusion or exchange of gases mainly oxygen and carbon dioxide...... from and into blood

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CH3COOH + KHCO3=?

Posted by Jyoti Yadav 6 years, 1 month ago

CBSE > Class 10 > Science

7 answers

Ajay ???? 6 years, 1 month ago

CH3COOH + KHCO3 =CH3COOK + H2O+CO2

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Shivang Sharma 6 years, 1 month ago

KHCO3 + CH3COOH → CH3COOK + H2O + CO2

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Dr. Ravi ♥️(See U On19 Feb) ??Offline?? 6 years, 1 month ago

It will gives potassium acetate (CH3COOK)+ Carbon dioxide & Water

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⚜??Brainly Buddy??⚜ 6 years, 1 month ago

Yup right answer aditi

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Aditi Goel 6 years, 1 month ago

…=CH3COOK+H2O+CO2 I think this is the answer...

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⚜??Brainly Buddy??⚜ 6 years, 1 month ago

Because carboxylic acid + metal carbonate/hydrogencarbonate = metal salt of carboxylic acid + water + carbon dioxide

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⚜??Brainly Buddy??⚜ 6 years, 1 month ago

CH₃COOK + H₂O +CO₂

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Why do stem and roots show unilateral growth towards light and gravity of earth respectively???

Posted by Aditi Goel 6 years, 1 month ago

CBSE > Class 10 > Science

7 answers

Shivang Sharma 6 years, 1 month ago

It is due to geotropism

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⚜??Brainly Buddy??⚜ 6 years, 1 month ago

This what?

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Aditi Goel 6 years, 1 month ago

What is this brainly buddy

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??????? ? 6 years, 1 month ago

Hii frnds

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⚜??Brainly Buddy??⚜ 6 years, 1 month ago

2Thank You

Aditi Goel 6 years, 1 month ago

Hlo #brainly buddy

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⚜??Brainly Buddy??⚜ 6 years, 1 month ago

Due to positive and negative geotropism

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How can thyroid activity be determined in man?

Posted by Aditi Goel 6 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Shreya S❤ 6 years, 1 month ago

By taking a look at tsh and thyroid secretion

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What is the effect of insulin on blood sugar level?

Posted by Aditi Goel 6 years, 1 month ago

CBSE > Class 10 > Science

1 answers

⚜??Brainly Buddy??⚜ 6 years, 1 month ago

Insulin decreases blood sugar

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Hormones are called informational molecules. Justify.

Posted by Aditi Goel 6 years, 1 month ago

CBSE > Class 10 > Science

2 answers

Shivang Sharma 6 years, 1 month ago

#brainly buddy kya tum bhi 10 me ho

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⚜??Brainly Buddy??⚜ 6 years, 1 month ago

They carry messagez to the target site to make the organs do a particular function.. explain it according to word limit

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ANSWER

Name the organ associated with the nervous system which is also a part of endocrine system and release hormone?

Posted by Aditi Goel 6 years, 1 month ago

CBSE > Class 10 > Science

6 answers

Shivang Sharma 6 years, 1 month ago

I think shruti is right

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Aditi Goel 6 years, 1 month ago

@shruti gupta hi Are u sure abt the ans From where do you belong

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Diksha ? 6 years, 1 month ago

Yaa

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⚜??Brainly Buddy??⚜ 6 years, 1 month ago

ohk thanks

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Shruti Gupta 6 years, 1 month ago

Hypothalamus

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⚜??Brainly Buddy??⚜ 6 years, 1 month ago

I think brain

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ANSWER

What is the definition of neutrilization reaction

Posted by Shivam Sharma 6 years, 1 month ago

CBSE > Class 10 > Science

4 answers

Shivang Sharma 6 years, 1 month ago

When acid and base react with each othet to produce salt and water For e.g.- HCl+NaOH gives NaCl+H2O

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⚜??Brainly Buddy??⚜ 6 years, 1 month ago

reaction of an acid and a base

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Sanket Arjun 6 years, 1 month ago

When acid and base react its product is salt and water this reaction is known as neutralization reaction

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Ansh Ika 6 years, 1 month ago

When an acid reacts with a base to form salt and water,that reaction is called neutralisation reaction

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What do you mean by Catenation?

Posted by Grahul 📒🎒📓📔🙇🙇🙇 Rahul 6 years, 1 month ago

CBSE > Class 10 > Science

4 answers

⚜??Brainly Buddy??⚜ 6 years, 1 month ago

property of carbon to link with other carbon atoms

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Ansh Ika 6 years, 1 month ago

Yup

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M.......... Duhan 6 years, 1 month ago

Exactly

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Ansh Ika 6 years, 1 month ago

Self Linking capacity of an element

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What are allotropes of carbon name them

Posted by Grahul 📒🎒📓📔🙇🙇🙇 Rahul 6 years, 1 month ago

CBSE > Class 10 > Science

4 answers

Grahul 📒🎒📓📔🙇🙇🙇 Rahul 6 years, 1 month ago

Graphite diamond and buck minister fullorene

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Shivang Sharma 6 years, 1 month ago

Diamond, graphite and C60

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Ansh Ika 6 years, 1 month ago

Diamond ,graphite,fullrene

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M.......... Duhan 6 years, 1 month ago

Diamond and graphite

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Merit of mendleev Perodic Table

Posted by Prashant Bhatt 6 years, 1 month ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 6 years, 1 month ago

Achievements of Mendeleev’s Periodic Table:

Mendeleev kept some blank spaces in the periodic table for the elements which were yet to be discovered.
He also predicted properties of some elements even before their discovery which were later found to be correct.
Mendeleev’s periodic table could accommodate noble gases when they were discovered.

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Geographic isolation??

Posted by Diksha ? 6 years, 1 month ago

CBSE > Class 10 > Science