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BARSIC [14]
3 years ago
13

Which statement is about population density

Chemistry
1 answer:
Montano1993 [528]3 years ago
5 0

Explanation:

Population density is defined as the number of people present per square kilometre. Population density of India according to 2011 census is 382 persons per square kilometres.

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Elephants are valued by some people because their tusks are made of ivory. Although it is illegal, people kill
Naddik [55]

Answer:

Poaching.

Explanation:

The descriptions for each of the terms you listed:

  • poaching: illegal hunting of wild animals
  • habitat destruction: the process in which a habitat becomes unsuitable for supporting life, often by human activity
  • pollution: the introduction of hazardous or harmful waste into the environment
  • nonnative species: a species introduced to a new habitat, often by human activity, that thrives unusually well due to having no natural predators in its new habitat.

Hunting elephants (an illegal activity in many countries) for their ivory is considered poaching.

4 0
3 years ago
Read 2 more answers
A color-coded periodic table. Which elements are metals? Check all that apply. rhenium (Re) boron (B) lithium (Li) krypton (Kr)
AlekseyPX

Answer:

re) li) hg)

Explanation:

6 0
4 years ago
Read 2 more answers
Hey can you pls just respond bc i want points
vichka [17]

Ight even though you have to answer other peeps

7 0
3 years ago
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1125 J of energy is used to heat 250 g of iron to 55 °C. The specific heat capacity of iron is 0.45 J/(g·°C).
Stolb23 [73]

Answer:

45 °C.

Explanation:

From the question given above, the following data were obtained:

Heat (Q) = 1125 J

Mass (M) = 250 g

Final temperature (T₂) = 55 °C

Specific heat capacity (C) = 0.45 J/gºC

Initial temperature (T₁) =?

The initial temperature of the iron can be obtained as illustrated below:

Q = MC(T₂ – T₁)

1125 = 250 × 0.45 (55 – T₁)

1125 = 112.5 (55 – T₁)

Divide both side by 112.5

1125/112.5 = 55 – T₁

10 = 55 – T₁

Collect like terms

10 – 55 = –T₁

–45 = –T₁

Multiply through by –1

45 = T₁

T₁ = 45 °C

Therefore, the initial temperature of the iron is 45 °C

8 0
3 years ago
Which of the following statement is correct for a group of a periodic table.
Vaselesa [24]

Answer:

I believe it is B

Explanation:

I am on this lesson too :)

6 0
3 years ago
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