22. Explain why it is better to increase the biodiversity of ecosystem.

1 answer:

7 0

Answer: because increasing biodiversity can influence ecosystem functions such as productivity and variety and even the likelihood that a particular species is discovered by a comminity

Explanation:

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Multiple choice: Sunspots appear dark because

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Answer: C. They are regions in which strong magnetic fields make it difficult for fresh supplies of hot, ionized gas to reach the photosphere

Explanation:

Sunspots appear dark because they are regions in which strong magnetic fields make it difficult for fresh supplies of hot, ionized gas to reach the photosphere.

Sunspots are typically cooler than their surroundings. For example, the temperature of a large sunspot can be about 4,000 Kelvin which is lower than the temperature of the photosphere around it which is about 5,800 Kelvin.

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A forklift raises a 1,020 N crate 3.50 m up to a shelf. How much work is done by the forklift on the crate?

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Aside from filling lakes with sediment, it is a biological concern which is the population of fish and other aquatic organisms will decrease due to the dissolved oxygen in the water decreasing dramatically. I hope my answer has come to your help. God bless and have a nice day ahead!

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What is the mass of a bullet moving at 970m/s if the bullet’s KE is 3.9x 10^3J

motikmotik

Answer:

0.08kg

Explanation:

K.E = 1/2 mv^2

v = 970m/s

K.E = 3.9x 10^3J= 3900J

K.E = 1/2 mv^2

3900 = 1/2 m x 970x 970

3900 = 1/2 ×940900m

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According to charles' law, the volume of a fixed amount of gas is directly proportional to

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The correct answer is "absolute temperature".

In fact, Charle's law states that, for a fixed amount of gas kept at constant pressure, the ratio between the volume of the gas V and its absolute temperature T is constant:
$\frac{V}{T}=k$

And this equation can be also read as: when V changes, T changes by the same proportion, so this means that the volume V is directly proportional to the absolute temperature T of the gas.

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