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3 years ago

When did the build up of three oxygen create our ozone layer

Geography

1 answer:

Umnica [9.8K]3 years ago

3 0

Answer:

The build-up of three oxygen created our ozone layer around two billion years ago.

Explanation:

The ozone layer is a part of the stratosphere which is located right after the troposphere in the atmosphere of the Earth.
The ozone gas is made up of the abundance of three oxygen molecules combining with the ultraviolet radiation emitted by the Sun.
The development of the ozone layer happened around two billion years ago when the oxygen concentration levels on the planet began to rise slowly and gradually.

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What type of technology does Mexico use

tester [92]

Mexicans have access to first-world infrastructure and high-velocity Internet speeds in Mexico City, in pockets along the border with Texas, and in business centers like Monterrey and Guadalajara, but the vast majority of Mexicans live beyond the reach of the digital age. About 82 million people — 70 percent of Mexicans — have no access to a computer or the Internet, according to the Mexican Internet Association, or AMIPCI.

4 0

2 years ago

The owner of a tree farm decides to harvest a stand of mature white pine trees. Each white pine yields approximately 62 board fe

adelina 88 [10]

Answer:

$13764 ; $247752 ; $173426 ; $259740

Explanation:

1 white pine = 62 board feets

Density of white pine = 120 trees per acre

Wholesale price per board foot = $1.85

The value per acre of white pines

(Number of board foots per white pine) * (Number of white pines per acre) * (wholesale price per board foot)

(62 * 120 * $1.85) = $13,764

B.) Amount Realized on harvesting 18 acres

Value per acre * 18

$13764 * 18

= $247752

C.)

Amount charged by timber company = 30% of wholesale price

Total wholesale amount realized on 18 acre = $247752

Amount left after paying timber company :

$247752 - (0.3 * $247752)

= $173426.4

= $173426 (nearest dollar)

Amount made now : = $247752

After 10 years :

The value per acre of white pines

(Number of board foots per white pine) * (Number of white pines per acre) * (wholesale price per board foot)

(127 * 120 * $1.85 * 18) = $507492

$507492 - $247752 = $259740

5 0

1 year ago

Why does Slovakia have a more vibrant agricultural sector than the neighboring Czech Republic?

Sphinxa [80]

Answer:

Because of the fertile plains of the Danube River.

Explanation:

Slovakia and Czechia (formerly the Czech Republic) despite being part of a single country until three decades ago, and being neighbors with very close ties, have developed differently and their economies have a lot of differences. One of the biggest differences is that Slovakia has a highly developed agricultural sector while Czechia's is very small and doesn't contribute much to the economy.

s The reason for this difference is geography. Slovakia has a relatively large and very fertile plain, with the Danube River being a big plus in it. This provides Slovakia with enough area and very good conditions so that it can have a prosperous agricultural sector. Czechia, on the other hand, is almost entirely covered with mountains and hills, and the little area of the handfull of valleys is mostly urbanized, thus the country doesn't have what it needs to develop the agricultural sector.

5 0

2 years ago

What are the different ways in which the tectonic plates interact with each other as they move around

Aneli [31]

There are Divergent boundaries which are areas where plates move away from each other, forming either mid-oceanic ridges or rift valleys.
There are Convergent boundaries which are areas where plates move toward each other and collide.
And there are Subduction zones which occur where an oceanic plate meets a continental plate and is pushed underneath it. Subduction zones are marked by oceanic trenches

I hope this helps. I know it was pretty late, sorry about that.

5 0

2 years ago

Which equation is correct regarding the measure of ∠1?

timurjin [86]

Answer:

its c m∠1 = (b – d)

Explanation:

I just took the test

8 0

2 years ago