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Question
Why do farmers grow many fruits and vegetable crops inside large greenhouses? What are the advantages to the farmers?
Solution
A greenhouse is a closed facility used to grow fruits and vegetables. Its framework supports a translucent outer shell made of glass or plastic. It is a sheltered area where environmental conditions can be controlled to promote optimal plant development.
Farmers are increasingly using the greenhouse approach because it allows them to quickly harvest fruits and vegetables without worrying about unpredictable weather conditions.
The main advantages of the greenhouse to the farmers are:
- The greenhouse coverings have the ability to modify the direction of the sun's rays, resulting in an even. distribution throughout the entire surface, benefiting the entire greenhouse and avoiding direct solar rays falling on the plants.
- Farmers can manage and establish the ideal cultivation environment in a greenhouse. This enhances productivity.
- Greenhouses help protect crops from pests, vermin, and illnesses, lowering the risk of crop failure.
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RELATED QUESTIONS
Define parasite. name two parasites.
Define nutrition.
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One of the following organisms has a saprophytic mode of nutrition. This organism is:
(a) mushroom
(b) malarial parasite
(c) leech
(d) lice
There are four organisms A, B, C and D. The organism A eats only the flesh of other animals as food. The organism B can eat grains, fruits and vegetables as well as meat and fish. The organism C can make the food itself from simple inorganic substances present in the environment by utilising sunlight energy. On the other hand, organism D eats only plants and their products as food.
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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.
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Match the organisms given in Column I with their mode of nutrition given in Column II.
| Column 1 | Column II | ||
| (a) | Mango tree | (i) | Insectivorous plant |
| (b) | Mushroom | (ii) | Heterotrop |
| (c) | Pitcher plant | (iii) | Autotroph |
| (d) | Cuscuta | (iv) | Saprophyte |
| (e) | Elephant | (v) | Parasitic |
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.
