History of Science

Carbon fiber was discovered in the 1950s at the Royal Aircraft Establishment in the United Kingdom. The material was developed as a high-strength, lightweight alternative to materials such as metal and was initially used in aerospace applications.

The northeastern US generally has a colder climate compared to the southeastern US due to its proximity to the Arctic region, which brings colder air masses. States in the northeast like Maine, Vermont, and New Hampshire experience colder winters with more snowfall than states in the southeast like Florida, Georgia, and the Carolinas.

Thunder is not electricity itself, but rather the sound that results from the rapid expansion and contraction of air heated by a lightning bolt. Lightning is a discharge of electricity that occurs during a thunderstorm, which can produce the sound we hear as thunder.

The climate in foothills can vary depending on their location, but typically they have a milder climate compared to higher altitudes or lowland areas. Foothills often experience cooler temperatures than lowland areas due to their higher elevation, and they may receive more precipitation as well. The climate in foothills can also be influenced by nearby mountain ranges, which can create localized weather patterns.

Shortly after Earth's formation and early crustal formation, an occurence called 'The Iron Catastrophe' occured, where iron sank to the center of the planet. The heat released from this occurence literally melted the entire planet, and as the iron sank to the center, lighter materials rose, the lightest forming the crust. The density of materials increases with depth. Although uranium and other heavy elements are found in the crust, it is due to their chemical preference to appear as a trace element in the silicate crust than to appear in the core.

As of October 2021, Mt. Etna has been experiencing intermittent and moderate eruptive activity throughout the year. It is an active volcano that regularly shows signs of activity, including lava flows and ash emissions. It is closely monitored by volcanologists for any changes in activity.

DNA is copied during the S phase of the cell cycle, which occurs after the G1 phase and before the G2 phase. This process of DNA replication ensures that each daughter cell receives an identical copy of the genetic material.

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Animals are living things that must ingest or absorb their food in order to obtain nutrients for energy and growth. Examples include humans, dogs, cats, and birds.

please lang po .. pag mag aanswer po kayo siguraduhin niyong alam niyo.. Hindi yung puro kalokohan lang.. kase pano naman po yung siryoso na nagsesearch tapos makikita lang nilang puro kalokohan yung answers. thanks godbless.

kaya nga, wag nmn bastos! di rn kc kayo nakakaloko ee... Ayusin nyo naman... Nag hihirap kame para lng mkita ung answer tapos makikita namen kalokohan? kung kayo kaya ganunin namen? matutuwa kayo?

TAMA! by: s.w.

the atlantic

If Earth's tectonic plates stopped moving, the surface would eventually become smoother with less mountain-building activity and earthquakes. The existing landforms would erode over time, eventually leading to a more uniform landscape with fewer areas of high relief. Volcanic activity would decrease as well.

The most recent killer tornado, which occurred in North Carolina on November 16, 2011, killed 2 people. It touched down less than an hour after another tornado in South Carolina that killed 3 people.

Ancient civilizations melted metal by using furnaces fueled by charcoal or wood. The metal ore was placed in the furnace with the fuel and heated to high temperatures, causing the metal to melt and separate from the impurities. The molten metal was then cast into molds to create various objects.

the degree of polaris on the horizon is your latitude. Shows the curvature of the earth. When the degree of polaris is 1 degree greater, you move the some distance if you move another degree. Shows how everything is equally distant from the center.

The spindle apparatus equally divides chromatids between offspring cells during cell division through a process called mitosis. The spindle fibers attach to each chromatid and pull them apart to ensure that each daughter cell receives an equal number of chromosomes. This ensures genetic stability and proper distribution of genetic material.

Earth's climate has been changing over the past century due to human activities such as burning fossil fuels and deforestation, leading to an increase in greenhouse gas emissions. This has resulted in global warming, causing rising temperatures, melting ice caps, changing precipitation patterns, and more frequent extreme weather events. Scientists warn that continued climate change could have devastating impacts on ecosystems, agriculture, sea levels, and human society.

A frigid climate is characterized by extremely cold temperatures for an extended period of time. These climates typically have harsh winter conditions with low average temperatures and limited plant and animal life adapted to survive in cold environments. Regions near the poles or at high altitudes often have frigid climates.

he lost his father in childhood

hope this helped:)

Being critical minded means questioning information, reasoning logically, and evaluating arguments or evidence in a thoughtful and analytical way. It involves being open to new ideas while also being skeptical and not easily swayed by false or unsubstantiated claims.

Eduardo Quisumbíng y Argüelles (1895-1986) was a leading authority of the plants of the Philippines and wrote many taxonomic and morphological papers on the subject, including 'Medicinal plants in the Philippines' (Manila 1951).

He received the Distinguished Service Star (1954) for outstanding contribution to the field of systematic botany; Diploma of Merit on Orchidology and Fellow Gold Medal, Malaysian Orchid Society (1966); Gold Medal, American Orchid Society and 1975 PhilAAS Most Outstanding Award. The plant 'Saccolabium quisumbingii' has been named in his honour.

This statement is correct because a hypothesis is a proposed explanation that has not been validated through experimentation and evidence. Scientific inquiry aims to test and gather evidence to support or reject a hypothesis, rather than proving it true. It is always possible for new evidence or data to emerge that could challenge or refine a hypothesis.

An obligate anaerobe.

His contributions include the discovery of the cell nucleus and cytoplasmic streaming; the first observation of Brownian motion; early work on plant pollinationand fertilisation, including being the first to recognise the fundamental difference between gymnosperms and angiosperms; and some ofthe earliest studies in palynology. He also made numerous contributions to plant taxonomy, including the erection of a number of plant families that are still accepted today; and numerous Australian plant genera and species, the fruit of his exploration of that continent with Matthew Flinders.