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Mrrafil [7]
2 years ago
13

Sunog na nagsulong sa pagtatag ng pamahalaang sibil sa pilipinas

Advanced Placement (AP)
1 answer:
laila [671]2 years ago
6 0
Answer: Susog spooner
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Air pollution from a power plant is being monitored for levels of nitrogen dioxide and ground-level ozone. The levels are measur
zysi [14]

Answer:

There will be an increase in the level of nitrogen dioxide and a decrease in the level of ground-level ozone.

Explanation:

Ozone is a gas normally found in stratosphere, where it protects us from solar radiation. However, under certain circumstances, it can be formed on the ground level.

Conditions that have to be met in order for this to happen are existing of nitrogen oxides and volatile organic compounds (VOC) (both formed from the factories, industry and transport) and their reaction catalyzed by heat and light.

During dark, cold and cloudy days, due to the lack of heat and light from the Sun, formation of ozone will be decreased.

Also, this will enable building up of nitrogen dioxide, due to the same reason, leading to increased concentration.

7 0
3 years ago
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With a half life of 28.8 years, how long will it take 1g of strontium-90 to decay to 250 mg
soldier1979 [14.2K]

The time it takes for 1g of strontium-90 to decay to 250 mg is; 57.6 years

<h3>What is the half life of an element?</h3>

The formula for half life is;

A(t) = A₀ * (¹/₂)^(t/t_1/2)

Where;

A(t) is amount left after t years

A₀  the initial quantity of the substance that will undergo decay;

t_1/2 is the half-life of the decaying quantity.

We are given;

t_1/2 = 28.8 years

A₀ = 1 g

A(t) = 250 mg = 0.25 g

Thus;

0.25 = 1 *  (¹/₂)^(t/28.8)

log 0.25 = (t/28.8) log (1/2)

-0.60206 = (t/28.8) * -0.3010

t = 2 * 28.8

t = 57.6 years

Read more about half life at; brainly.com/question/11152793

6 0
2 years ago
(AP World) What information can I use to contextualize this question:
Ket [755]

Explanation:

<h3>The Bolshevik launched a movement for women's self-activitiy; the Zhenotdel, also known as women's section of the community party. (1919-1930)</h3>
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3 years ago
Which of the following substances does carbon change into in plants during photosynthesis? (1 point)
shepuryov [24]

Answer:

b

Explanation:

7 0
3 years ago
At which part of the eye are focused images mostly accurately conveyed to the brain
Lerok [7]
Images are focused by the lens onto the retina which is a face at the back of the eye upon which light sensitive cells (rods and cones) convert the incident light into electrical signals that are transmitted to the brain.

The fovea is a pit directly behind the lens on the retina that contains a concentration of light sensitive, closely packed cones (colour sensitive cells) and is responsible for sharp central vision. 
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3 years ago
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