Minerals are important for your body to stay healthy. Your body uses minerals for many different jobs, including keeping your bones, muscles, heart, and brain working properly. Minerals are also important for making enzymes and hormones. ... You only need small amounts of trace minerals. Vitamins and minerals are considered essential nutrients—because acting in concert, they perform hundreds of roles in the body. They help shore up bones, heal wounds, and bolster your immune system. They also convert food into energy, and repair cellular damage.

• Continental drift theory was proposed by Alfred Wegener in 1912.
• It was first put forward by Abraham Ortelius in 1596 before fully being developed by Alfred Wegener.
• The theory deals with the distribution of the oceans and the continents.
• According to Wegener’s Continental Drift theory, all the continents were one single continental mass (called a Super Continent) – Pangaea and a Mega Ocean surrounded this supercontinent. The mega ocean is known by the name Panthalassa.
• Although Wegener’s initial theory did not cover mantle convection until Arthur Holmes later proposed the theory.
• The supercontinent was named Pangaea (Pangea) and the Mega-ocean was called Panthalassa.
• According to this theory, the supercontinent, Pangaea, began to split some two hundred million years back.
• Pangaea first split into 2 big continental masses known as Gondwanaland and Laurasia forming the southern and northern modules respectively.
• Later, Gondwanaland and Laurasia continued to break into several smaller continents that exist today.

NATURE OF HUMAN GEOGRAPHY

1. Human geography studies the inter relationship between the physical environment and socio-cultural environment created by man. 2. Elements of physical are land, water, soil, climate, vegetation, fauna 3. Elements of cultural are transport and communication, settlements, crops NATURALISATION OF HUMANS a. Man interact with nature with the help of technology b. It is not important that what he creates but with what tools he used to create c. Technology indicates the level of cultural development of society d. Understanding the nature helps to create technology 1. understanding of friction and heat helped to discover fire

2. understanding DNA helped to eradicate diseases

3. laws of thermodynamics helped to develop fast planes

4. knowledge about nature is extremely important to develop technology and technology loosens the shackles of environment on human being .

NATURE OF HUMAN GEOGRAPHY

1. Human geography studies the inter relationship between the physical environment and socio-cultural environment created by man. 2. Elements of physical are land, water, soil, climate, vegetation, fauna 3. Elements of cultural are transport and communication, settlements, crops NATURALISATION OF HUMANS a. Man interact with nature with the help of technology b. It is not important that what he creates but with what tools he used to create c. Technology indicates the level of cultural development of society d. Understanding the nature helps to create technology 1. understanding of friction and heat helped to discover fire

2. understanding DNA helped to eradicate diseases

3. laws of thermodynamics helped to develop fast planes

4. knowledge about nature is extremely important to develop technology and technology loosens the shackles of environment on human being .