English

Jalvaayu Tay Karne Wale Kaarak

Class 7 Social Science · Chapter 3: Bharat ki Jalvaayu · NCERT Exploring Society: India and Beyond section 3.2

Seekho

Akshaansh: Bhoomadhya rekha ke paas kirnein lagbhag seedhi girti, garmi kendrit; dhruvon ke paas tirchhi, bade kshetra mein faili aur zyaada vaayumandal paar. Isliye Kanniyakumari aur Nicobar saal bhar garam, jabki Srinagar kaafi thanda. Oonchaai: oopar jaane par taapmaan girta, kyunki hawa patli aur dhoop se garam zameen se door. Ooty aur Coimbatore lagbhag same akshaansh par, phir bhi Ooty ki garmi 10–25 °C aur Coimbatore ki 25–38 °C.

Samudra se nikatta: samudra dheere garam-thanda hota, to tatiya taapmaan ko santulit karta. Mumbai (garmi lagbhag 32 °C, sardi 18 °C, antar 14 °C) aur Nagpur (44 °C tak aur 10 °C tak, antar 34 °C) same akshaansh par, par Nagpur samudra se door. Hawaayein garmi-thand aur nami le jaati: Arab ki sookhi pashchimi hawa Punjab aur Rajasthan mein lu laati, aur Himalaya paar ki thandi hawa sheet lahar. Sthalaakriti bhi: Himalaya Bharat ko Madhya Asia ki barfeeli hawa se bachaate, jabki samtal Thar ko aisi sharan nahi.

Ye kaarak milkar kshetra ki jalvaayu gadhte, jo 30 ya zyaada saal par batayi jaati. Sookshm jalvaayu chhota kshetra jo aas-paas se alag: chhaayaadaar ghaati, jangal, ya shehri ooshma dweep, kam hariyaali wala concrete shehar jo garmi faslaakar aas-paas ke gaanvon se garam rehta.

Explore: kaunsa kaarak kaam kar raha?

  1. Har udaharan sort karo.

Yaad rakho

  • Akshaansh, oonchaai, samudra se nikatta, hawa aur sthalaakriti milkar jalvaayu gadhte.
  • Sookshm jalvaayu, jaise shehri ooshma dweep, aas-paas se alag.

Quick check

Mumbai aur Nagpur same akshaansh par. Nagpur ka antar bahut bada kyun?

  1. Nagpur samudra se door
  2. Nagpur Himalaya mein ooncha
  3. Mumbai registaan mein
  4. Nagpur ko dhoop nahi
Answer

Nagpur samudra se door. Samudra tatiya taapmaan santulit karta.

Socho

Shehar apna shehri ooshma dweep prabhaav kaise kam kar sakta?

Ek answer

Ped aur park lagaao, jheel aur khuli mitti bachaao, halke rang ki chhatein, aur imaaraton ke beech hawa ke liye jagah chhodo.

Practice

Teen levels (easy, medium, hard) ke naye sawaalon se practice karo, kuch hands-on, hints aur hal ke saath. Topic poora karne ke liye pichhle 5 mein se 4 sahi karo.