Yes, the data from mass spectrometry has helped modern scientists to make modifications to Dalton's model.
Dalton's model consisted of a single atom and that basically the atom is the smallest object. At the time, no discovered what are inside of atoms.
Atoms are made up of small particles, protons, neutrons and electrons. A mass spectrometer is an instrument that is able to see what is inside an atom. With this item, scientists have proved that atoms are not the smallest in the world cause the objects in them are smaller.
If you are already in the middle of the intersection, try to go quickly but safely so you don't block traffic.
The given angles sum to less than 90°, so the remaining angle must be more than 90°. (The total of all angles is 180°.) Triangle ABC has an angle greater than 90°, so is obtuse. Since the triangles are similar, their corresponding angles are congruent. Hence ...
.. D. Triangle XYZ is obtuse.
Europe has been going though deforestation since the neolitic times.
In North America deforestation can be found for example in Canada
South America is undergoing deforestation- for example in Bolivia
Asia is definitely undergoing deforestation- for example in Indonesia
so the correct answer is: none of the above!
