The xylem in plants are responsible for
transport of water
transport of food
transport of amino acids
transport of oxygen
In a plant, the xylem is responsible for transport of water.
दिलेल्या पर्यावरणमूल्ये व पर्यावरण धोके यावर आधारित परिच्छेद पूर्ण करा.
पर्यावरण संवेदनास निवडली दिशा लिहा.
खालील प्रश्नांची उत्तरे लिहा (कोणतीही तीन):
(i) दिवा लावा : पर्यावरण संवेदन.
(ii) समपुष्कजंतु प्राणी व अपुष्कजंतु प्राणी स्पष्ट करा.
(iii) पर्यावरण संवेदनाचा आणि योग व ध्यान दिलेल्या आकृती पूर्ण करा (मूल्यशिक्षण उपयोजन).
(iv) आपली जीवनशैली कोणतीही दोन दाखवा लिहा.
(v) योग व ध्यानाच्या उपयुक्तता कोणतीही दोन लिहा.
Match Column-I with Column-II and choose the correct option:
| Column-I (Minerals) | Column-II (Features) | ||
|---|---|---|---|
| A. | Copper | (i) | Used in manufacturing of steel and plants |
| B. | Bauxite | (ii) | Used in electric and electronic industries |
| C. | Mica | (iii) | Used in electric cables and utensils |
| D. | Manganese | (iv) | Used in aluminium production |
Choose the correct answer from the options given below:
Give reasons:
(i) The sky appears dark to passengers flying at very high altitudes.
At very high altitudes, passengers are above the atmosphere where there is less scattering of sunlight. As a result, they do not see the scattered blue light and the sky appears dark, similar to the condition experienced by astronauts in space.
(ii) 'Danger' signal lights are red in color.