B) She will do well on the exam because of stereotype threat.
C) She will do poorly on the exam because of the self-fulfilling prophecy.
D) She will do well on the exam because of the self-fulfilling prophecy.
Answer:
true
Explanation:
Answer:
true
Explanation:
To calculate the intrinsic rate of natural increase (r) for Japan, we use the formula r = Birth Rate + Migration Rate - Death Rate. Plugging in the given values, we get r = (7.7 + 0.55) - 9.8 = -1.55 per thousand. This indicates that Japan's population is decreasing at a rate of 1.55 per one thousand people annually.
To calculate the net growth rate or the intrinsic rate of natural increase (r) for Japan, we can use the given birth rate, death rate, and the rate of net migration. The formula is generally given as follows: r = (Birth Rate + Immigration Rate) - Death Rate.
In this case, the Birth Rate is 7.7 per thousand, the Death Rate is 9.8 per thousand, and net migration rate (which is equivalent to the Immigration Rate for this calculation) is 0.55 per thousand. Therefore, substituting these values into our formula, we get: r = (7.7 + 0.55) - 9.8, which simplifies to: r = -1.55 per thousand.
This means that Japan's population is decreasing at a rate of 1.55 per one thousand people each year when birth rate, death rate, and net migration are taken into account.
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Answer:
the answer is A
Explanation:
Answer:
As the pH rises, the concentration (toxicity) of the ammonia also increases. When the pH level increases above 9, most of the ammonium in the water is converted into toxic ammonia (NH3), which can kill fish. ... The Nitrobacter bacterium feeds on the nitrites in the water and converts them into nitrate (NO3).
Explanation:
test the ph balance.
The conversion of ammonia to nitrate decreases pH levels, making the environment more acidic. This is critical because pH affects the availability of nutrients to plants and the health of soil ecosystems.
The pH level changes when ammonia is converted to nitrate as a part of the nitrification process. Ammonia (NH3) is alkaline by nature. As it gets converted into nitrate (NO3), the process consumes H+ ions, causing the pH to decrease, making the environment more acidic.
This is important because pH affects the availability of nutrients to plants and the health of the soil ecosystem. If the pH is too low (acidic), it can inhibit the growth of certain organisms and disrupt the balance of the ecosystem.
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