Answer: Option (4)
Explanation: Methane (CH4) is one of the green house gas which is about 0.00017% by volume at present.
With the increasing number of factories and the industries, a noticeable amount of methane has been released to the atmosphere so far, and they have the ability to exist in the atmosphere for about 10-12 years. It can also be reduced when undergoes chemical reaction in the atmosphere.
Hence, the correct option here is (4)
<span>After staring at a blue light for a few minutes, Yoko shifts her gaze to a white wall and experiences an afterimage in the color yellow. Yoko's experience provides support for the opponent-process theory of color vision.
The opponent-process theory is proposed by
</span>color vision. This model was first proposed in 1878 by Ewald Hering and <span>states that when one emotion (in this case : color) is experienced, the other is suppressed. In Yoko's case she experiences (looked) the blue color long enough to supres the white color,</span>
Answer: False
Explanation: They are replaced every seven years
It could possibly be a endangerment to children and elders
