Question

Greenhouses have glass panels that let light but keep heat from escaping. In which regions would greenhouses of this type be used to grow plants?

Answer 1

Answer:

greenhouse is for growing plants. It is made of glass or clear plastic to let in lots of sunlight. But why not just put the plants outside? A greenhouse stays warmer than the air outside. Instead of cooling off at night, it traps some of the heat inside to keep the plants warm. Even in the winter, with no heat source but the Sun on a clear day, a greenhouse stays warmer than the air outside. In the summer, if a greenhouse gets too hot, the gardener can open the windows and doors and maybe turn on a fan.

Greenhouse Earth?

Cartoon Carlos looks miserably hot.A greenhouse is terrific if all you want to do is grow heat-loving plants. But what if Earth's atmosphere started to behave like a too-hot greenhouse? Don't forget, we cannot open Earth's windows or doors to cool it off. Earth as a closed-up greenhouse would soon grow to be ghastly!

If you made our Gummy Greenhouse Gas models, you may wonder why the molecules you made with gumdrops are called greenhouse gases. Here is why: If the atmosphere contains too much of these gases, the whole Earth becomes a hotter and hotter greenhouse. The atmosphere holds onto too much of the heat at night instead of letting it escape into space. Then, the next day, the Sun heats Earth's surface even more.

Cartoon of Earth, with atmosphere containing greenhouse gases. Sun's rays enter atmosphere, most go through to surface, a few bounce off into space. On the night side, most energy rays exit atmosphere, some bounce off back to Earth.

If the atmosphere works too well as a greenhouse, each day gets a little warmer and a little warmer. We may not be able to measure this effect from day to day or even year to year. But over tens of years, a few degrees of warming starts causing changes. For example, ice melts in the North and South Pole regions. All this new liquid water raises the sea level. Cities built on coastlines could someday be under water!

When the oceans get warmer, weather is affected everywhere. Some places have more severe storms and other places have hardly any rain at all. And many other changes could occur that would be bad for humans and other living things.

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Answer 2

Answer:

Concept:

The greenhouse stays warm because heat can't escape through the glass and instead stays inside.

Explanation:

• A greenhouse, sometimes known as a glasshouse or a hothouse if it has enough heating, is a building with walls and a roof primarily constructed of transparent material, such as glass, where plants that need controlled climatic conditions are produced.
• These buildings come in a variety of sizes, from modest sheds to enormous factories. A cold frame can be thought of as a tiny greenhouse. When a greenhouse is exposed to sunshine, the interior temperature rises significantly above the ambient temperature, insulating the contents from cold weather.
• Even in the winter, a greenhouse keeps a comfortable temperature inside. Sunlight enters the greenhouse during the day and heats the air and plants within.
• Even when it gets cooler outside at night, the greenhouse remains rather warm. That's because the greenhouse's glass walls keep the heat from the Sun inside.
• In the same way that the atmosphere of the Earth does, greenhouses also retain heat. Sunlight enters the greenhouse through the glass, is absorbed by the plants and the floor, and then is transformed into heat.
• Man has created technical means to cultivate some high-value crops by protecting them from the harsh cold and heat in some temperate zones where the climate is exceedingly unfavourable and no crops can be grown.

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