Explanation:
North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere. In can also be described as a northern subcontinent of the Americas[5][6] in models that use fewer than seven continents. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the west and south by the Pacific Ocean, and to the southeast by South America and the Caribbean Sea.North America covers an area of about 24,709,000 square kilometers (9,540,000 square miles), about 16.5% of the earth's land area and about 4.8% of its total surface.
Answer:
At 100°C, the water is present in two states: Liquid and gases.
At this temperature, the water molecules get converted into vapor state. The energy of the vapor or steam particles is more than the water molecules although they are present at the same temperature because of the presence of Latent heat of vaporization.
Latent heat of vaporization is defined as the amount of energy required to convert a liquid into gas at constant temperature and pressure. This energy is hidden in the physical process.
Because of this heat, the particles of steam have more energy than water at same temperature.
particles in steam at hundred degree Celsius and 373 degree Kelvin will have more energy than the water at same temperature because the steam would have observed the latent heat of vaporization which is equal to 540 calories
The answer is A,hope this helps !
Answer:
D
Explanation:
plants make use of solar energy(energy from the sun )to produce oxygen using carbon dioxide(CO2)
Answer:
Option D
Explanation:
Prevented yourself from knowing what was in the pill bottles, and distributed the bottles randomly to the subjects.
