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USPshnik [31]
4 years ago
11

You observe the peak brightnesses of two white dwarf supernovae. supernova a is only 1/4 as bright as supernova

Geography
1 answer:
antiseptic1488 [7]4 years ago
5 0
Supernova A must be further than Supernova B, because the more the distance, the less the brightness appears, and the closer you are, the brighter it seems. If Supernova A is 1/4 as bright as Supernova B, Supernova A must be twice as far away than Supernova B, meaning Supernova B is closer to wherever you are viewing.


A lot of Supernovas in one sentence, but, I hope this helps!
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The folded rock layers of some mountain ranges have been deformed to a near _____ position
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Vertical. Many rocks in mountainous areas can be vertical or even overturned.

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What economic issues should be considered during conservation?
olchik [2.2K]

Answer:

Hybridization may drive rare taxa to extinction through genetic swamping, where the rare form is replaced by hybrids, or by demographic swamping, where population growth rates are reduced due to the wasteful production of maladaptive hybrids. Conversely, hybridization may rescue the viability of small, inbred populations. Understanding the factors that contribute to destructive versus constructive outcomes of hybridization is key to managing conservation concerns. Here, we survey the literature for studies of hybridization and extinction to identify the ecological, evolutionary, and genetic factors that critically affect extinction risk through hybridization. We find that while extinction risk is highly situation dependent, genetic swamping is much more frequent than demographic swamping. In addition, human involvement is associated with increased risk and high reproductive isolation with reduced risk. Although climate change is predicted to increase the risk of hybridization‐induced extinction, we find little empirical support for this prediction. Similarly, theoretical and experimental studies imply that genetic rescue through hybridization may be equally or more probable than demographic swamping, but our literature survey failed to support this claim. We conclude that halting the introduction of hybridization‐prone exotics and restoring mature and diverse habitats that are resistant to hybrid establishment should be management priorities.

Explanation:

8 0
3 years ago
Why collecting Corals were not allowed by the government​
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Answer:

Corals are schedule 1 species under the Wildlife Protection Act, 1972, meaning corals have the same protection as that of a tiger or a leopard. ... “The collection of these species, dead or alive, is completely banned under Indian laws. They can neither be exported nor imported.

Explanation:

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3 years ago
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Which of the following statements about the rivers of the United States and Canada is false?
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4 0
4 years ago
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During the summer months , the water level in Marta's pool decreases by about 1/2 inch each day due to evaporation . Which equat
Cloud [144]

Answer:

\Delta z = 1.2\cdot \Delta t, \Delta z = 36\,in

Explanation:

The total water level lost due to evaporation is directly proportional to the number of day. That is:

\Delta z = k \cdot \Delta t

Where k is the proportionality constant, which is equal to \frac{1}{2}\,\frac{in}{day}. The expression is:

\Delta z = 1.2\cdot \Delta t

And the total change in water level after 30 days is:

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\Delta z = 36\,in

7 0
4 years ago
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