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Science

The observation, identification, description, experimental investigation, and theoretical explanation of phenomena is all part of science. Nothing is immune to the scientific process: from charm quarks that haven't existed naturally since the beginning of time to Pluto, recently demoted from planet to dwarf planet. Questions on knowledge about the material and physical aspects of our world are asked and answered here.

203,801 Questions

What does clinical correction mean?

Clinical correction refers to the adjustment of a therapy or treatment plan based on the evaluation of a patient's response and progress. This can involve changing medication dosages, trying different therapies, or addressing any issues that may be hindering the effectiveness of the current treatment. Ultimately, the goal is to optimize the patient's outcomes and well-being.

Do humans go through complete or incomplete metamorphosis?

Humans go through incomplete metamorphosis. This means that there is no distinct larval stage in human development, unlike in insects that go through complete metamorphosis with distinct stages like egg, larva, pupa, and adult.

What three things does a karotype show?

A karyotype shows the number, size, and shape of chromosomes in a cell. It allows for the identification of genetic abnormalities and can be used to diagnose chromosomal disorders such as Down syndrome.

What term is used to describe the deliberae mating of two different breeds of animals to produce offspring with particular characteristics?

This is most commonly known as "selective breeding". It is also called "artificial selection" in an evolution sense.

What would happen to boiling water if an impurity is added?

Adding an impurity to boiling water, such as salt, sugar, or other substances, can change the boiling point of the water. The impurity will raise the boiling point of the water, meaning it will need to reach a higher temperature to boil. This effect is known as boiling point elevation.

Which of newton's laws explain how a walking person moves forward by pushing backward?

Newton's third law of motion states that for every action, there is an equal and opposite reaction. When a person pushes backward against the ground while walking, the ground exerts an equal and opposite force forward on the person, propelling them forward.

What can you use to separate visible light?

You can use a prism to separate visible light into its different colors through the process of refraction. This creates a rainbow-like spectrum of colors ranging from red to violet.

What does non-communicable mean?

Non-communicable refers to diseases that are not transmitted from one person to another. These diseases are typically chronic in nature, such as heart disease, cancer, diabetes, and respiratory diseases. They are often caused by a combination of genetic, lifestyle, and environmental factors.

Is tarshing silver a chemical change?

No, tarnishing silver is a physical change. It occurs when silver reacts with sulfur compounds in the air to form silver sulfide on the surface of the silver. This reaction does not change the chemical composition of the silver, only its appearance.

Importance of physical science to man?

The Importance of Science to man is to gain knowledge about our society and to now who and where technology started. It even gives us knowledge about the latest technology's released.

How does a meteor's name change as it moves from space to our atmosphere and lands on earth?

They are known as meteorites if they land on Earth.

They are known as meteorites if they land on Earth.

They are known as meteorites if they land on Earth.

They are known as meteorites if they land on Earth.

They are known as meteorites if they land on Earth.

They are known as meteorites if they land on Earth.

They are known as meteorites if they land on Earth.

They are known as meteorites if they land on Earth.

They are known as meteorites if they land on Earth.

They are known as meteorites if they land on Earth.

They are known as meteorites if they land on Earth.

I am one of the sea nymphs the 50 daughters of nereus and doris.who am i?

You are one of the Nereids, the sea nymphs in Greek mythology. The Nereids are known as the daughters of Nereus, a sea god, and Doris, a sea goddess. They are often depicted as beautiful maidens who accompany other sea deities like Poseidon and are associated with the sea's various elements and activities.

Does an oyster have a backbone?

No, oysters do not have a backbone. They are classified as invertebrates, which means they do not have a vertebral column or backbone like vertebrate animals do. Oysters belong to the phylum Mollusca, specifically in the class Bivalvia.

How does protein comparisons contribute to evolutionary theory?

Protein comparisons, ie. DNA comparisons contribute to evolutionary theory by separating organisms in the plant and animal kingdoms. They go so far as to even separate individuals from one another within the same species. AKA Genetic Code.

What are 2 natural events that can impact the worlds climate?

Well there more than two, but examples include an asteroid impact and a volcanic eruption. Both have a history of spewing tons of ash dirt and debris into the air, reflecting the Suns rays, diminishing heat, in consequence affecting the Earths climate.

How do you explain the change from solid to gas that you see between the elements carbon and nitrogen?

Before attempting to explain it, I'd have to figure out what the question means. There are no elements between carbon and nitrogen... carbon is Z = 6, and nitrogen is Z = 7. Since confinement prevents us from having part of a proton, there's no room to shove any more elements in there.

What can be done to reduce street children?

To reduce street children, it is important to address root causes such as poverty, family breakdown, and lack of access to education and social services. Providing support to families at risk, improving access to education, providing shelter and rehabilitation services for street children, and implementing policies to prevent children from ending up on the streets are all effective strategies. Collaboration between government, NGOs, and communities is essential for comprehensive solutions.

What compounds does amine have?

Amines are organic compounds that contain a nitrogen atom bonded to hydrogen atoms and/or carbon chains. They can be classified as primary, secondary, or tertiary amines based on the number of carbon groups attached to the nitrogen atom. Amines play important roles in biological processes and can be found in various natural and synthetic compounds.

What is the angle between the direction of motion of an object and the direction of the applied force if the work done on the object is said to be negative?

If the work done on an object is negative, the angle between the direction of motion and the direction of the applied force is greater than 90 degrees. This means the force is acting in the direction opposite to the motion of the object, resulting in a decrease in energy or displacement of the object in the opposite direction of the force.

Do salmon die after they lay their eggs?

Salmon die after spawning due to exhaustion and malnutrition. As most salmon are sea fish, the environment of the creeks and streams are poisonous to them and they are unable to feed as they swim up stream. By the time they get to the spawning grounds they have used up their stores of energy and cannot get back to the sea.

Hair on the nose?

The presence of hair in the nose is normal and serves a purpose in filtering out harmful particles from the air we breathe. Excessive nose hair can be trimmed carefully with scissors or a trimmer if desired, but it's important not to completely remove it as it plays a protective role. If you have concerns about your nose hair, it's best to consult with a medical professional for advice.

How is it possible that a limestone rock change into marble?

Limestone can change into marble through a process called metamorphism, which involves high pressure and temperature deep within the Earth's crust. This process recrystallizes the minerals in the limestone, resulting in a more compact and harder rock with a different texture and appearance, known as marble.

What are the rocks in space that never quite made it as planets?

The rocks in space that never quite made it as planets are often referred to as asteroids. Asteroids are rocky remnants left over from the formation of the solar system that never managed to coalesce into full-fledged planets. They are typically found in the asteroid belt between Mars and Jupiter, as well as in other regions of the solar system.

What advantage do the builders of large telescopes today have over the previous generation of telescope builders?

Large mirrors can now be made thinner and lighter than before.

Tracking celestial objects today is computer controlled and can take advantage of simpler, stronger mounts. High-speed computing today can be used to reduce the effect of Earth's atmosphere.