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ArbitrLikvidat [17]
3 years ago
13

How old are rocks on earth?

Geography
2 answers:
Serga [27]3 years ago
8 0

Answer:

4.28 billion years.

Explanation:

Making them 250 million years more ancient than any previously discovered rocks.

lozanna [386]3 years ago
6 0

Answer:

4 billion years

Explanation:

Scientists have found the oldest known rocks on Earth. They are 4.28 billion years old, making them 250 million years more ancient than any previously discovered rocks. Earth formed about 4.6 billion years ago from a disk of gas and dust circling the sun.

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Describe two differences between the Karakum and Kyzylkum Deserts in Central Asia.
Lelechka [254]

Answer:

The differences between Karakum and Kyzylkum Deserts are:

1. Karakum means Black Sand because of the black soil that is beneath the sandy desert while Kyzylkum means Red Sand.

2. Karakum has an irrigation system that sustains the farming of most part of Turkmenistan while Kyzylkum is located between two rivers and is shared by three countries, Kazakhstan, Uzbekistan, and Turkmenistan.

The Karakum Desert is a desert in Central Asia.ts name suggests that Black Sand in Turkic languages, in respect to the dark soil that lies at a lower place the sandy surface of abundant of the desert. It occupies concerning seventy %, or 350,000 km², of the realm of country.

The Kyzylkum Desert is in central Asia and its name suggests that Red Sand in Turkic languages. It covers concerning 298,000 km2.D desert fauna embody the Russian turtle.

8 0
3 years ago
A geologist observes abundant fossils of a distinctive trilobite species in a shale, but this trilobite disappears as she walks
MAXImum [283]

Answer:

The first trilobite species went extinct and its ecological niche was occupied by another species, which may have evolved from the first cap

Explanation:

Considering the knowledge of geography and the situation you described in the text, the correct answer is that ", the Trilobite species went extinct and its ecological niche was occupied by another species, which may have evolved from the first cap.

8 0
3 years ago
Which of the following are tools commonly used to study cultural demographics?
Andru [333]

Answer:

b) Human Development Index

7 0
3 years ago
Formed when
olga nikolaevna [1]

Answer:

Explanation:

formed when

sediments are

compacted and

cemented together.

1.

igneous rock

<

formed by heat and

pressure while buried

deep below earth's

surface.

2.

metamorphic rock

3.

sedimentary rock

formed when lava or

magma harden.

4.

rock cycle

a model that shows

how rock undergoes

processes to become

3 0
2 years ago
An example of interaction in an ecosystem
Reil [10]
Predation: In predation, one species kill and feeds on another species.
3 0
3 years ago
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