How loud can humans hear?


How loud can humans hear?

The average person can hear sounds down to about 0 dB, the level of rustling leaves. Some people with very good hearing can hear sounds down to -15 dB. If a sound reaches 85 dB or stronger, it can cause permanent damage to your hearing.

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How many states of matter are there?


Four states of matter are observable in everyday life: solid, liquid, gas, and plasma. Many other states are known such as Bose–Einstein condensates and neutron-degenerate matter but these only occur in extreme situations such as ultra cold or ultra dense matter.

Which continent is the second largest land mass?


A continent is one of Earth’s seven main divisions of land. The continents are, from largest to smallest: Asia, Africa, North America, South America, Antarctica, Europe, and Australia. When geographers identify a continent, they usually include all the islands associated with it.

🌀What is Phishing🌀


Phishing is the fraudulent attempt to obtain sensitive information such as usernames, passwords and credit card details by disguising as a trustworthy entity in an electronic communication.Typically carried out by email spoofing or instant messaging,it often directs users to enter personal information at a fake website, the look and feel of which are identical to the legitimate site.

Phishing is an example of social engineering techniques being used to deceive users. Users are often lured by communications purporting to be from trusted parties such as social web sites, auction sites, banks, online payment processors or IT administrators.

Attempts to deal with phishing incidents include legislation, user training, public awareness, and technical security measures — because phishing attacks also often exploit weaknesses in current web security.

The word itself is a neologism created as a homophone of fishing, due to the similarity of using a bait in an attempt to catch a victim.

👽What is AdSense and how does it work?


Google AdSense is a program run by Google that allows publishers in the Google Network of content sites to serve automatic text, image, video, or interactive media advertisements, that are targeted to site content and audience. These advertisements are administered, sorted, and maintained by Google.
Google Adsense is a CPC (cost-per-click) advertising program that allows publishers (anyone wanting to put ads on their websites) to insert a small amount of HTML into their sites and have ads appear that are targeted and relevant to the content of the site.

What is Portfolio?


What is Portfolio?

A portfolio is a grouping of financial assets such as stocks, bonds, commodities, currencies and cash equivalents, as well as their fund counterparts, including mutual, exchange-traded and closed funds. Portfolios are held directly by investors and/or managed by financial professionals and money managers.