What are food, calories and nutrients? 🍽 Food is one of the basic necessities of life, it is any substance consumed to provide nutritional support for an org… Read more »

What are functions of vitamins A, C, D, E, K? 📌 Vitamin A helps form and maintain healthy teeth, bones, soft tissue, mucous membranes, and skin. 📌 Vitamin C… Read more »

How many and what food do we need? 🔺 Age, sex, weight, height, and level of activity determine the number of calories a person needs each day. The recommende… Read more »

What is hygiene? Hygiene can be defined as:  📌 a science of the establishment and maintenance of health, and  📌 the practices of keeping yourself and your s… Read more »

What were the first toothbrushes? Good oral care seems to have been high up on the agenda for humans since ancient times.   🪥Evidence found in Egyptian tombs… Read more »

What are food, calories and nutrients? 🍽 Food is one of the basic necessities of life, it is any substance consumed to provide nutritional support for an org… Read more »

Scientists have confirmed that, if climate goals are not achieved, up to two thirds of the glaciersin the Himalya region could melt due to climate change by 2… Read more »

In 2008 a great economic crisis led to a recession of the economies around the world. What began as a credit crisis turned out to be the biggest banking crisi… Read more »

Central Europe. In the 17th and 18th century coffee conquered North and South Amercia Coffee houses soon became popular all over the world. In the 1900s chain… Read more »

Globalization lets countries do what they can do best. If, for example, you buy cheap steel from another country you don’t have to make your own steel. You ca… Read more »

changing their colours. Others, like beetles, have a hard shell that protects them. Some insects produce poison and inject it into enemies by biting or stingi… Read more »

Automakers around the world are planning to make cars that are smaller, use up less fuel and do not damage our environment. At auto shows around the globe car… Read more »

The Manhattan Project was the code name of a government program to develop an atomic bomb during World War II. Although over 100,000 scientists and engineers w… Read more »