Many gardeners know that, when a frost is expected, plants can be protected by covering them with large plastic tubs. Explain why this is an effective way of protecting plants from frost
What will be an ideal response?
ANSWER: An appropriate student answer would be that small plants or shrubs may be protected from cold temperatures by covering them with straw, cloth, or plastic sheeting because this prevents ground heat from being radiated away to the colder surroundings. If you are a household gardener concerned about outside flowers and plants during cold weather, simply wrap them in plastic or cover each with a paper cup. On cold nights, certain crops can also be damaged by low temperatures. If the cold occurs over a widespread area for a long enough time to damage certain crops, the extreme cold is called a freeze.?
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Depositional landforms are created where energy of the stream __________.
a.) decreases, then increases b.) has increased c.) has decreased d.) has not changed
How are mountains formed at convergent boundaries?
What will be an ideal response?
Much of Earth's water supply originated from
A) asteroids. B) icy comets. C) gases expelled from the Sun; i.e., solar wind. D) photosynthesis.
The tops of rainforest trees form a thick, almost continuous _______________ that blocks out much of the sun's light
Fill in the blank(s) with correct word