Answer: WN virus is maintained in nature in a mosquito-bird-mosquito transmission cycle. Mosquitoes of the genus Culex are generally considered the principal vectors of WNV, in particular Cx. Pipiens. WNV is maintained in mosquito populations through vertical transmission (adults to eggs).
Explanation:
Answer: A. motion parallax
Explanation:
In the phenomenon of motion parallax, objects that are moving at certain speeds across a particular field of vision, would also appear to move at greater speeds if they’re closer to the observer. This remains true even if the object instead of the person is moving
. The phenomenon always arises whether or not the object is moving or that the observer is moving in a manner that is relative to the object’s motion. This is because of the distance the object moves in comparison to the proportion of the observers’ field of view that it traverses. Thus, motion parallax generally describes one’s perception of the position of an object with a three-dimensional space, based on sensing said objects at different positions.
Global winds rising near equator and cold air sinking near the poles
Answer:
oxygen , carbon , hydrogen , nitrogen , phosphorus , sulfur are some examples
