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bezimeni [28]
3 years ago
14

Liquid water is denser than ice true or false

Biology
2 answers:
WARRIOR [948]3 years ago
8 0
False, because solids weigh more than liquids depending if its mass covers the whole object.
Grace [21]3 years ago
4 0

Answer: its TRUE.

Explanation:

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Mention three types of living things​
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<h3> animal, plants and fungi</h3>

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Body cells that contain the full number of chromosomes, 46 in humans, are called
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somatic cells?

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Which correctly lists three scientists who supported the heliocentric model of the solar system? Aristotle, Ptolemy, Copernicus
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Kepler, Galileo, Copernicus

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6 0
3 years ago
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Which order of components is used to create hydroelectric power?
MrRissso [65]

Answer:

Answer is option A.

reservoir - penstock - turbine - generator - transformer - electrical lines

Explanation :

The most important parts of a hydroelectric power plant are the dam and the reservoir. The dam which is built on a large river, has a reservoir placed behind it to store water. The height of the water in the reservoir is directly proportional to the maximum possible potential energy from the water. The penstock is a long pipe or shaft which transfer the water from the reservoir to the power generation unit.  Thus the water in the penstock has potential energy due to its height and kinetic energy due to its motion. The power generation unit contains turbines and generator. This water falls on the blades of the turbine which causes the blades to rotate. Thus the kinetic and potential energy of water is converted into the rotational motion of the turbine blades. The rotating blades causes the rotational motion of the turbine shaft, which is enclosed inside the generator where the electricity is produced. The rotational motion of the turbine shaft inside the generator generates magnetic field which is converted into alternating current by electromagnetic field induction. The transformer converts this electricity into a higher voltage which is then fed into power lines for distribution.

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3 years ago
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Have a short discussion on the three periods of botany history.
Elina [12.6K]

Answer:

The history of botany examines the human effort to understand life on Earth by tracing the historical development of the discipline of botany—that part of natural science dealing with organisms traditionally treated as plants.

Some traditional tools of botanical science

Rudimentary botanical science began with empirically-based plant lore passed from generation to generation in the oral traditions of paleolithic hunter-gatherers. The first written records of plants were made in the Neolithic Revolution about 10,000 years ago as writing was developed in the settled agricultural communities where plants and animals were first domesticated. The first writings that show human curiosity about plants themselves, rather than the uses that could be made of them, appear in ancient Greece and ancient India. In Ancient Greece, the teachings of Aristotle's student Theophrastus at the Lyceum in ancient Athens in about 350 BC are considered the starting point for Western botany. In ancient India, the Vŗkşăyurvĕda, attributed to Parăśara, is also considered one of the earliest texts to describe various branches of botany.[1]

In Europe, botanical science was soon overshadowed by a medieval preoccupation with the medicinal properties of plants that lasted more than 1000 years. During this time, the medicinal works of classical antiquity were reproduced in manuscripts and books called herbals. In China and the Arab world, the Greco-Roman work on medicinal plants was preserved and extended.

7 0
2 years ago
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