The earliest archaeological evidence of humans in Australia is from Lake Mungo , dating to 40,000 years ago.
the temperature of mercury is not regulated and the atmosphere easily floats away while being replaced with solar wind .
Mercury has a thin atmosphere.
When we breathe, our respiratory system takes up oxygen and carbon dioxide or other useless gases go out . The oxygen combines with the haemoglobin in the blood of the circulatory system . This is transferred to all the cells of our body to get energy.
Are caused by the tilt of the Earth's rotational axis away or toward the sun as it travels around the sun
