False, because
<span>According to 2n^2 rule </span>
<span>n=2 contains 8 electrons </span>
<span>n=3 contains 18 electrons </span>
<span>add electrons to have a stable octet in its outer energy level </span>
Answer:
Over 95% of incoming ultraviolet radiation is absorbed in :
A. The Stratosphere.
Explanation:
- Stratosphere is the second layer of the earth's atmosphere that lies next to the troposphere.
- This layer experiences very little turbulence of air and is very significant because of the presence of Ozone layer in it.
- The UV rays entering the Earth's atmosphere, photo dissociates ozone into O₂ and O. But these molecules quickly recombine to form ozone.Thus, stabilizing the concentration of ozone in the atmosphere.
- During this photo dissociation UV radiations loses much of its energy. Thus, 95% of incoming Ultraviolet radiation gets absorbed in the Stratosphere.
- Absorption of ozone UV radiation increases exponentially with the thickness of ozone layer.
No.Tissue is a group of cells.If the organisms is single called,it can't form a group to make tissues.
Answer:
The correct order starting from next to the object is
1. coverslip
2. objective lens
3. revolving nosepiece
4. body tube
5. body tube
Explanation:
The correct order starting from next to the object is
1. coverslip
2. objective lens
3. revolving nosepiece
4. body tube
5. body tube
A cover slip is a glass that is used to cover the specimen before observing through a microscope. Thus it is the nearest to the object.
Objective lens is the one which is near to the object hence it comes after the coverslip.
Revolving nose piece is a setup to which the objective lenses are attached thus it will come after the objective lens
Body tube is the hollow and tubular structure that forms the upper part of microscope.
While ocular lens also known as eyepiece are the farthest from the object , hence they come at the last.
The vulture is responsible for cleanup. Hope this helps!
