A first-hand source such as an experiment is called a primary source.
A primary source is where you can share new information or report on what you have discovered. Some primary sources are research data, interviews, audio recordings, and autobiographies.
A secondary source is where you describe and discuss about the primary sources. They are used to collect and gather primary source information. Some secondary sources are textbooks, review articles, and scholarly books.
A tertiary source is a source about summaries. A tertiary source can be used to look up information or get an overview about what it is you are wanting to know. Some tertiary sources are dictionaries, handbooks, encyclopedias, Wikipedia, and guidebooks.
The most likely consequence of the widespread lack of bees is loss or reduction of food. Majority of food depends on pollination and bees are major pollinators in the ecosystem, playing an essential role in food production among different type of plants. Bee’s declining population is mostly associated to excessive use of pesticides or toxicants in industrial agriculture as well as presence of different parasites or pathogens and even climate change.
This is because of the populations.
Less water would make a large population dehydrate.
Answer:
Pericarditis,an infection with an accumulation of fluid in the pericardial sac,can lead to cardiac attack ,as the fluid compress the heart and stops from beating.
Explanation:
Pericarditis is mainly caused by viral infection in the respiratory tract.Pericarditis is an autoimmune disorder as they release antibody which attack body's own tissue and cells.
Pericarditis mainly affect people with age between 20-50
Pericarditis means inflammation in the pericardium region which is a sac like like structure and surrounds the heart.
The symptoms include Chest pain,Cardiac attack and some times cause death.
Pericarditis may be acute as it happens suddenly and does't lasts for longer time.
<span>All natural radiation is at a level low enough to be safe</span>
