all topics

topics make navigating answers a breeze. from algebra to zoos, we've got a topic for you.

a population refers to the collection of organisms that belong to similar species and live in a single geographical area at a specified time. an example of a population is all the people residing in the united states.

181,532 questions

educational institutes are the abodes of knowledge humans seek to understand life and learn to make living comfortable, entertaining and enjoyable. schools, colleges and universities help people to study the nature of the creation, universe, mind, matter, inventions and discoveries and explore new ways of betterment of anything concerned with humanity and its associated expectations in relation to the world at large. this category is for asking and answering about the educational institutes, their importance, research, faculties, prospects, and related job orientation opportunities.

175,977 questions

conditions and diseases include everything from aches and pains to broken bones, chronic conditions to life-threatening diseases, symptoms and possible causes, and much more. questions range from what causes hair to turn grey, possible causes of pains, origins of viruses, and anything to do with conditions and diseases associated with health.

175,822 questions

questions about the properties and characteristics of elements as observed in nature and in compounds. chemical formulas are also converted to and from symbols in covalent or ionic bonds. all the questions you want to ask about the elements and the compounds they form.

175,252 questions

definitions are the meanings of words.

172,637 questions

this category should include questions about greatest common factors and lowest common multiples.

156,383 questions

the supreme law of the united states, the constitution provided the framework for the creation of the united states government.

144,119 questions

this topic includes questions about all the drama about teen dating and questions about how to deal with your feelings, such as falling in love with your best friend, good dating skills, and more.

142,415 questions

music comes in many styles, from rap to metal, jazz to classical. this category is for questions about the various genres.

140,095 questions

countries, states and cities are geographical divisions. countries are the largest units usually covering a large area. some countries are made up of smaller areas, called states, and they in turn are comprised of many cities.

139,126 questions

a tv program refers to a broadcasted segment in television. the segment may be a part of a television series or may be a one-off broadcast only. commercials are usually played during or between the programs, and feature feature products or upcoming events.

137,373 questions

throughout human history, humans have been searching for meaning. many people find it in religious or spiritual worship or practice. the questions of religion have occupied humanity since our beginnings. questions here include the ancient, organized, and new & evolving religions; faith, spirituality, and alternate pathways; as well as those of people still searching. questions about the origins of religion, comparison of religion, and atheism are also found here.

134,600 questions

human physiology is the study of the human body relevant to the functions of the organs and systems. it provides a biological baseline for the five senses including the different systems, so that the body can operate normally.

133,981 questions

the second world war began in 1939 and ended in 1945 and engaged most of europe and asia into combat between the allies and the axis powers.

130,940 questions

percentages are defined as a fraction or portion of a whole. generally percentages deal with an amount out of one hundred but can be used in sales, economics, and science. if you've walked into any store you're sure to find something marked a certain percent off. fractions are not whole numbers with a numerator over a denominator. usually the numerator and denominator are expressed as integers. there are four types of fractions: simple fractions, complex fractions, mixed fractions, and improper fractions. decimals are also not integers. they are expressed often like 0.34 and are often rounded off since some go for too long. both decimals and fractions are also used to convert to percentages.

130,090 questions

the us president is the head of state and the head of the federal government of the united states of america. the president's power is checked and balanced by the two other branches of the us government, which are congress and the supreme court.

129,390 questions

questions and answers on pokemon diamond pearl and platinum. here, you can find out how to defeat the snowpoint city gym or where to find giratina. questions about the sinnoh region pokemon can be found here as well.

128,128 questions

questions asking for an example of a sentence with a certain word in it.

123,235 questions

the laws of a society is a set of rules and principles that determine a system of society's dos and don'ts, and the institutions that legislate and enforce the laws. ask your questions about laws, legal systems, and legal issues here.

122,940 questions

length refers to the measurement of an object from one end to another, while distance is the space between two objects or points. the two systems used to measure length and distance are the english and metric systems.

112,318 questions

the study of plant life is known as botany. all questions related to plant sciences such as taxonomy are welcome here.

111,129 questions

from democracy to communism, every country on earth has a different political organization. ask questions about political parties, leaders and history here.

110,173 questions

the practical application of knowledge, especially in a particular area, is called technology. advances in technology affect every area of our lives. this category is for questions about technology and includes everything from how to remove a scratch from a cd to applications of electronics to what polyester is made from and more.

107,702 questions

prescription drugs can be both helpful and harmful. ask questions here about medication management and how to stay safe while overcoming illnesses.

106,815 questions

war and military history encompasses the causes and effects, the courses and actions, the good and the bad, of warlike activities - from the earliest of times to present actions.

106,701 questions

this category is for questions and answers about the american civil war. this was an internal conflict involving the state rights, and divided the united states in a bloody struggle. it was fought after the secession of eleven southern states, and lasted from 1861 to 1865.

104,776 questions

ever wanted to know the difference between a boysenberry and a blueberry? socialism and communism? windows and linux? look no further. this category answers your questions about 'the differences between...'

104,616 questions

the scientific study of celestial bodies. find questions on constellations, planets and more.

102,178 questions

this category includes questions and answers about computers and everything related to computers.

100,833 questions

do you ever wonder why one river is straight and flows quickly while another meanders along curves and seems to be slow and peaceful, or how the mountains were formed? geology is the study of the earth, its materials, and the processes acting upon them. it includes the study of rocks and minerals; and their formation, weathering, and metamorphosis. so, when you need an answer to a question about rivers, mountains, volcanoes, rock cycles, plate tectonics, or other geological aspects, our geology category is the place to ask it.

98,859 questions