Advertisements
Advertisements
प्रश्न
Visit a green house if there is one near your place. Observe how they grow plants. Find out how they regulate the amount of light, water and carbon dioxide to grow the plants.
Advertisements
उत्तर
-
Light Regulation:
- Use of Shading Nets: To control the amount of sunlight entering the greenhouse.
- Artificial Lighting: Additional lights may be used to ensure plants receive adequate light during low natural light conditions.
-
Water Regulation:
- Drip Irrigation Systems: Efficiently delivers water directly to the plant roots.
- Sprinkler Systems: Evenly distributes water over the plants.
- Humidity Control: Humidifiers or misters may be used to maintain the desired humidity levels.
-
Carbon Dioxide Regulation:
- Ventilation Systems: Ensures proper air circulation and CO2 levels.
- CO2 Enrichment: Some greenhouses use CO2 generators to increase the carbon dioxide concentration to enhance plant growth.
संबंधित प्रश्न
Why do organisms need to take food?
Why is nutrition necessary for an organism?
What is the process of obtaining food by Amoeba called? What does it mean?
The organism having parasitic mode of nutrition is:
(a) Penicillium
(b) Plasmodium
(c) Paramecium
(d) Parrot
Which of the following is an incorrect statement?
(a) energy is essential for life processes
(b) organisms grow with time
(c) movement of molecules does not take place among cells
(d) organisms must repair and maintain their body
In which of the following groups of organisms the food material is broken down outside the body and then absorbed?
The organisms A, B and C can obtain their food in three different ways. Organism A derives its food from the body of another living organism which is called its D, without killing it. The organism B takes in the solid food by the process of ingestion, digests a part of this food and throws out undigested food in the process called E. The organism C obtains its food from dead and decaying plants.
(a) What is the mode of nutrition of (i) organism A (ii) organism B, and (iii) organism C?
(b) What is the organism like D called?
(c) Name the process E.
(d) Give one example each of organisms like (i) A (ii) B, and (iii) C.
(e) What is the general name of three modes of nutrition exhibited by organisms A, B and C?
One of the following organisms can live without oxygen of air. This organism is
(a) Amoeba
(b) Yak
(c) Yeast
(d) Leech
List two differences between 'Holozoic nutrition' and 'Saprophytic nutrition'. Give two examples of each of these two types of nutrition.
How does growing embryo get nutrition from the mother's blood?
