Question

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Answer 1

Answer:

1) discovery of agriculture make the human life easier .. ... the discovery also make humans to settle down and make them to not move whole around the forest . it also help them to grow different variety of crops and fruits.

2) The early man wore clothes made of animal skins during the winter months and clothes made from grass and bark of trees during the summer months. Explanation: The early man would hunt for animals to create clothes and boots from animal skins.

3) The early man discovered fire by jus rubbing two stones accidentally.

EXPLANATION:

In ancient days, there was no light after the sun set. the early men use to live in dark nights without any light.

During those period of time, by rubbing two stones accidentally, they discovered the fire. After this discovery of fire, it was used in various ways like cooking, to maintain the body temperature in winter seasons etc.

The fire was mostly used during night times to identify the things and for doing various works or activities.

4) Fire provided a source of warmth, protection from predators, a way to create more advanced hunting tools, and a method for cooking food. These cultural advances allowed human geographic dispersal, cultural innovations, and changes to diet and behavior.

5) The early men did not judge anything with logic and reasons but were governed by faith mostly due to fear. They worshipped the elements mightier than them in order to be safe and secured. They worshiped fire, water, stone and even sometimes wild animals just out of fear. Their religious beliefs were based on nature.

6) Because the Mesolithic is characterized by a suite of material culture, its timing varies depending upon location. In northwestern Europe, for instance, the Mesolithic began about 8000 bce, after the end of the Pleistocene Epoch (i.e., about 2,600,000 to 11,700 years ago), and lasted until about 2700 bce.

7)A microlith is a small stone tool usually made of flint or chert and typically a centimetre or so in length and half a centimetre wide. They were made by humans from around 35,000 to 3,000 years ago, across Europe, Africa, Asia and Australia. The microliths were used in spear points and arrowheads

8) Wheels with spokes, first made around 2000 BC, were lighter, enabling vehicles to move faster. Wheels were initially useful on carts and chariots pulled by oxen or horses. But humans discovered that a wheel powered by people, animals, wind or flowing water can be put to many other uses.

9) because they were not well developed but in later period we see some development as many thing were invented later there is a head among a village or a territory to make decissions

10) A megalith is a large pre-historic stone that has been used to construct a structure or monument, either alone or together with other stones. There are over 35,000 in Europe alone, ranging from Sweden to the Mediterranean sea.In parts of Britain and Ireland a relatively common type of megalithic construction is the stone circle, of which examples include Stonehenge, Avebury, Ring of Brodgar and Beltany. ... Stonehenge, for example, is famous for its solstice alignment. Examples of stone circles are also found in the rest of Europe.

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Answer 2

What do compasses, fans, and high-speed trains have in common? They all use magnets to function. Magnets are rocks or metals that create an invisible field around themselves. This field attracts other magnets and certain metals. The presence of a magnetic field is why you can cover a metal refrigerator door with magnets.

A magnetic field is concentrated around the ends of magnets. These ends are called poles. All magnets have two poles: a north pole and a south pole. You can feel the magnetic force if you hold two magnets so that their poles are near each other. If the poles are opposite (north and south), you will feel an attraction between the magnets. If the poles are identical (north and north or south and south), you will feel the magnets repelling each other.

Some materials are naturally magnetic. Lodestone, a rock that is rich in iron, is one example. And certain metals can become magnetic. These include iron, cobalt, and nickel. If you run a nonmagnetic iron nail through a magnetic field, you can turn it into a magnet. This process is called magnetization.

Earth is a giant magnet. That’s because the planet’s core consists mostly of iron. Earth’s magnetic field stretches out and around the planet. It is called the magnetosphere. The field is strongest near Earth’s North and South Poles.

Ever wonder why a compass always points north? The reason is that a compass is a magnet that sits on a pivot. This magnet is often called the needle. Since opposite poles attract, the south pole of the compass needle is attracted to Earth’s magnetic North Pole.