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jarptica [38.1K]
3 years ago
9

Why is heat described as "lost" energy?

Biology
1 answer:
Alisiya [41]3 years ago
8 0
In residential heating, convection is the mechanism by which heat is lost by warm air leaking to the outside when the doors are opened, or cold air leaking into the house through the cracks or openings in walls, windows, or doors. When cold air comes in contact with the heater in a room, it absorbs the heat and rises.
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List the sequence of events involved in the alternation of generations in land plants
Keith_Richards [23]
<span>The sequence of alternation of generation is; gametes->zygote->sporophyte->spores->gametophyte->gametes. The attached diagram shows clearly this looped cycle. Alternation of generation occurs in a more advanced land plant that has distinct haploid and diploid phases in their life cycle. The diploid phase usually involves the sporophyte while the haploid phase involves the gametophyte</span>




7 0
3 years ago
Jams, jellies, preserves, honey, and other foods with high sugar content hardly ever become contaminated by bacteria, even when
Fynjy0 [20]

Answer: this is because bacteria that encounter such an environment UNDERGO DEATH AS A RESULT OF WATER LOSS FROM THE CELL.

Option C.

Explanation: Water is a great medium of growth for bacteria. Several experiments have been carried out to support this statement. Also, it is a means by which the bacterium is transmitted from "a site" to another.

5 0
3 years ago
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HELP PLEASE!!!!<br><br><br> What are one or two important details
Andreas93 [3]

Answer:

the Hawaii scientific drilling project drilled over 3000 meters into the Mauna loa volcano and  when the lava is cooled it turns into a solid rock.

Explanation:

4 0
3 years ago
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Jill uses a magnet to pick up a nail. Then, she touches the nail to a paper clip and picks up the paper clip. What will most lik
Lemur [1.5K]

Answer:

C but see below.

Explanation:

e. The paper clip will likely fall off because it wasn't attached to the nail long enough to be magnetized.

The same answer would apply to the nail. It likely was not held onto the magnet long enough to pick up a magnetic force that would be strong enough to overcome the gravitational force pulling on the clip.

Of the four answers you have given us, I would agree with C.  But as I've argued above, the real reason is likely there.

3 0
3 years ago
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What three (3) factors determine the reactivity of elements? Explain and give examples of each.
Ivenika [448]

Three factors that determine the reactivity of elements are the valence electrons are the electrons in the outermost electron shell of an atom. The number of electrons in an atom's outermost valence shell governs its bonding behaviour. That is why in periodic table the elements were put together according to their numbers of valence electrons.

METALS

The most reactive kind of metallic element is a metal from Group 1 sodium or potassium.

An atom in Group 1 has only one valence electron.

NON-METALS

A nonmetal tends to attract another valence electrons to attain a full valence shell.

6 0
3 years ago
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