Answer:
109.5°, 120°, 109.5°
Explanation:
The bond angles that are marked as a, b and c in the given molecules is in the order of :
Angle a : 109.5°
Nitrogen is 
hybridized and the geometry is tetrahedral. So the bond angle is 109.5°
Angle b : 120°
Carbon is 
hybridized, so the shape is trigonal planer and the bond angle is 120°
Angle c : 109.5°
Carbon is hybridized and the geometry is tetrahedral. The bond angle is 109.5°
The answer is the last one (it needs a medium through which to travel) it is not true about radiation. A radiation is the emission of energy in the form of waves or particles through space or through a material medium. This includes; electromagnetic radiation, such as a radio wave, microwaves, visible light, x rays, and gamma radiation.
The correct answer is option B.
Research focused on how to cure cancer is an example of applied research.
The examples of basic research are :
A.) Research focused on how the human brain works
C.) Research focused on detecting life on other planets
D.) Research focused on human behavior
Applied research targets to solve specific human problems that have commercial value in the present day. Basic research is about understanding the fundamentals of science and nature, and it is essential to laying down the foundation of applied research.
