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Information Science and Libraries

Library and Information Science (LIS) is a discipline wherein the perspectives, practices and tools of management, education and information technology are applied to libraries. LIS is an integration of Library Science and Information Science.

1,171 Questions

Why do peoples eyes change colors?

peoples eyes change color because of there environment or the color of there thinking of these people are very very super rare if your eyes change color this is a gift from god he is blessing you with his mighty power so don't be sad or feel like a freak because you are really asome and if u don't want Ur eyes i don't mind changing we bot can go get surgery done and ill take your eyes and you can take mine ill be fine ill be a rare person because of u so be thankful for your wonderful gift not may people in the world have your gift from the lord

How does a geostationary satellite work?

A geostationary satellite orbits the Earth at the same speed that the Earth rotates, allowing it to remain in a fixed position relative to a specific point on the Earth's surface. This type of satellite is typically positioned at an altitude of around 35,786 kilometers above the equator, allowing it to maintain a constant view of a specific region on Earth. Geostationary satellites are commonly used for communication, weather monitoring, and navigation purposes.

What are 2 types of movement of animal-like protists?

Ciliary movement: Some animal-like protists, such as Paramecium, move by beating hair-like structures called cilia. Flagellar movement: Others, like Euglena, move by using whip-like structures called flagella to propel themselves through their environment.

Why does skin turn darker when exposed to sunlight?

When skin is exposed to sunlight, the body produces more of a pigment called melanin. Melanin acts as a natural defense against UV radiation by absorbing and dissipating it, helping to protect skin cells from damage. This increase in melanin production leads to darker skin as a way of shielding the body from excessive sun exposure.

What occurs when the moon comes between the sun and earth?

In normal circumstances this means that there will be no moon visible at night (because it is in the day side sky) - and the next sighting of the moon will be as a 'new moon' crescent.

Also in certain rare alignments the shadow of the moon can fall on the earth causing an eclipse of the sun. (The moon does not orbit the earth quite in the plane of the ecliptic thus the shadow rarely falls on the earth)

What was the Pawnee landforms?

The Pawnee inhabited the Great Plains region, characterized by vast grasslands, rolling hills, and rivers. They utilized the land for hunting bison, farming corn, and establishing villages along water sources. The landscape provided both challenges and resources that shaped Pawnee culture and way of life.

Why is solar energy difficult to harness?

Solar energy can be difficult to harness for several reasons, including intermittent availability due to weather conditions and the need for large surface areas to capture sufficient sunlight. Additionally, the efficiency of solar panels in converting sunlight into electricity is still limited, and the initial cost of implementing solar technology can be expensive.

What is the four immediate directions on a compass rose?

The directions on a compass are North (N), North Northeast (NNE), North East (NE), East Northeast (ENE), East (E), East Southeast (ESE), South East (SE), South Southeast (SSE), South (S), South Southwest (SSW), South West (SW), West Southwest (WSW), West (W), West Northwest (WNW), North West (NW), North Northwest (NNW) then back to North (N).

What tissue make up the dermis of the skin?

The dermis of the skin is made up of connective tissue, blood vessels, nerves, hair follicles, and sebaceous glands. It provides structural support and contains collagen and elastin fibers that give the skin its strength and elasticity.

What process of producing offspring?

The process of producing offspring involves sexual reproduction, where two parents contribute genetic material to create a new individual. In this process, specialized cells called gametes (sperm and egg) unite through fertilization to form a zygote, which develops into a new organism. This genetic combination results in offspring with a unique set of traits inherited from both parents.

Compare the climates of murree and quetta how are they alike and how do they differ?

Murree has a temperate climate with cool summers and snowy winters, while Quetta has a semi-arid climate with hot summers and cold winters. Both places experience snowfall in winter, but Quetta is generally colder due to its higher elevation. Murree tends to be wetter due to its proximity to the monsoon belt, while Quetta is much drier.

What types of epithelial tissues make up the skin?

The tissues which make up the skin are the Epithelial tissues.

There are three layers of the skin epidermis, dermis, and subcutaneous layer(fat).

Hope that helps : )

What are some ways soil get polluted?

Soil can get polluted through activities such as industrial waste disposal, agricultural runoff of pesticides and fertilizers, improper disposal of household chemicals, underground storage tank leaks, and mining operations. Pollution can also occur through deposition of air pollutants and improper landfill management.

How many brain cells does the brain make in a day?

The brain does not typically make new brain cells (neurons) in large numbers on a daily basis in adult humans. The process of neurogenesis (formation of new neurons) primarily occurs during prenatal development and in specific areas of the brain, such as the hippocampus, in adulthood.

What is a three base segement of tRNA?

A three-base segment of tRNA is called an anticodon. The anticodon is complementary to the mRNA codon during translation and helps to ensure the correct pairing of amino acids to the mRNA sequence. This is a fundamental mechanism in protein synthesis.

What are the main components of bone?

The main components of bone are minerals (mostly calcium and phosphorus), collagen (a type of protein that provides strength and flexibility), water, and bone cells (such as osteoblasts and osteoclasts) that help in bone formation and remodeling.

What is the smallest known life form?

I believe that is what biologists call "viroids", which are much smaller than viruses, and as of yet are not completely understood. but if your asking for the answer for your homework and its not "viroids" its definitely "microbes" your welcome 100% on my tests ;)

What is the system of cracks that form where the seafloor is spreading apart called?

The system of cracks that form where the seafloor is spreading apart is called a mid-ocean ridge. These cracks are also known as rift zones and are where magma rises to create new oceanic crust.

The brain contains about 100 billion support cells?

Support cells in the brain, known as glial cells, outnumber neurons by about 10 to 1. These cells play a crucial role in maintaining the brain's environment, supporting the function of neurons, and helping with neuronal communication. Although not involved in transmitting electrical impulses like neurons, glial cells are essential for overall brain function.

What is the lightest living thing in the world?

We don't have a good enough definition of "living thing" to answer this definitively. If viruses count, then it's probably a retrovirus, unless nanobes count in which cases it's a nanobe, unless prions count in which case it's almost certainly a prion. If none of those count, then a bacterium of some kind.

How are weathered materials moved?

Weathered materials are moved through processes like erosion, transportation by wind, water, or ice, and mass wasting events like landslides or rockfalls. These processes can result in the gradual movement of sediments over long distances, shaping landscapes over time.

How long will the water on earth last?

Not many people know about this man, but his name is Brian Badonde, he is an ingenious scientist who is on the verge of making PURE and unlimited water with a device called " Biddly Bong Pills". How his procedure works is that you get a pill and throw into your eyeball cavity, there fore causing an anatomic explosion making your eyeball squirt water out uncontrollably. In most cases the subject will loose their eye, and in some very rare but common cases, the subject will loose every vein in their body. So far the success rate has been 2% which is encouraging considering he has only been working on this product for 54 years. There was one case however, where the subject began to spawn molocules of arthritis in the eybrows, behind the ears, under the big toe, and in the nostrils. IF you have a bad reaction to these pills you must walk into your nearest library and scream BUMORE for BRYAN and then procede to look for a book on how to cure the reaction.

For more information call 1800- BUMORE

How do gases in earth's air differ from place to place?

as molten rock cools, gases such as nitrogen, water vapor, and carbon dioxide were released. Some of the gases were trapped within earth , then many escaped as volcanoes erupted. but the atmosphere didn't always have the oxygen it has today. as plants spread across the planet they took in carbon dioxide from the atmosphere and released oxygen into the planet.

What is the organic bone matrix called?

The organic bone matrix is called osteoid. It is made up of collagen fibers and proteoglycans, providing a framework for mineralization to occur, leading to bone formation.