This happens when the temperature of air is increased. Warm air molecules have more energy, so they move faster and create more pressure. ... So, you can see that density, temperature and pressure work together to change the conditions of the air. When heat is added, air temperature and pressure both increase.
Answer:
At 0 years, an event took place which is known as metamorphosis of igneous rock i.e., formation of igneous rocks from melted magma.
Strontium-90 is a radioactive element which undergoes beta decay to form yttrium-90. It has a half life of approximately 28 years and decay energy of 0.546 MeV. This radioactivity is used by geologist to estimate the age of the rock, fossils, meteorites etc. Other radioactive elements used by the geologists are carbon-40, potassium-40 etc.
Radiometric clock is set when the rock was formed in the past i.e., the moment when an ingenious rock was solidified from molten magma.
Answer: The SEM (Scanning Electron Microscope).
Explanation
The SEM produces images of the surface shape, composition and structure (morphology) of cells by scanning the sample with focused electron beams.
The interaction between the electrons and atoms in the cell produce visual images that reveal the surface composition and structure of the cell.
The SEM can achieve resolutions at the nanometer level. The specimen or sample is usually observed in a vacuum environment.
The West Coast of South America is a convergent boundary between the Nazca Plate and the South American Plate.
The Arabian plate is running up on the Eurasian plate.
