Answer:
smog
Explanation:
Photochemical smog is a mixture of pollutants that are formed when nitrogen oxides and volatile organic compounds (VOCs) react to sunlight, creating a brown haze above cities.
Answer:
Day 10
Explanation:
If the number of bacteria increases by a factor of two each day (i.e. it doubles), it will reach 5120 by day 10. At this rate, the colony likely started with 10 bacteria on day one and doubled each day to reach 320 by day 6.
Day 6- 320 bacteria
Day 7- 320×2= 640 bacteria
Day 8- 640×2= 1280 bacteria
Day 9- 1280×2= 2560 bacteria
Day 10- 2560×2= 5120 bacteria
High-frequency sound waves have a shorter wavelength and a higher pitch than low-frequency sound waves.
<span>Your basic lens is the pinhole camera. You can illustrate
a picture to exemplify how the light rays bypass through the hole to outline a picture
on the screen. A lens is a development on the pinhole, but the pinhole result
is still there, defined by the width of the lens. In a camera, the width is
adjustable and that is what the f-stop embodies. A small f-stop means a small
hole and the pinhole effect permits focus in a large range. A large f-stop
means the focus has to be more accurate, and things in front or behind the
focus point are blurred. In a microscope you have no such adjustment, so depth
of focus is always the same meaning that some objects in front of and behind
the object being viewed will also come into view in focus.</span>
