All categories

3 years ago

What is the oldest and most stable part of a continent?

2 answers:

8 0

The oldest and most stable part of a continent is (D.) Craton.

I'm taking the test now as well. Check out the Glencoe Earth science book page 625. The answer is on that page :)

Brrunno [24]3 years ago

7 0

D , the Craton found by earths lithosphere. refers usually when talking around the tech tonic plates <span />

You might be interested in

A rock is radiometrically dated to determine its age. The laboratory doing the dating discovers that the rock currently has 200

Soloha48 [4]

Answer: The rock is 2000785 years old.

Explanation:

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant

t = age of sample

a = initial amount of the reactant = 800

x = amount of daughter isotope = 600

a - x = amount left after decay process = amount of parent isotope = (800-600) = 200

Half life is the amount of time taken by a radioactive material to decay to half of its original value.

$t_{\frac{1}{2}}=\frac{0.693}{k}$

$k=\frac{0.693}{1000000}=0.000000693years^{-1}$

$t=\frac{2.303}{0.000000693}\log\frac{800}{200}$

$t=2000785years$

The rock is 2000785 years old.

6 0

3 years ago

2 StartRoot 2 EndRoot + 2 StartRoot 5 EndRoot units

alina1380 [7]

Answer:

$2\sqrt 2 + 2\sqrt 5$ = $2 (\sqrt 2 + \sqrt 5)$

Explanation:

Given

$2\sqrt 2 + 2\sqrt 5$

Required

Solve

$2\sqrt 2 + 2\sqrt 5$

Expand each term

$2 * \sqrt 2 + 2 * \sqrt 5$

Factorize:

$2 (\sqrt 2 + \sqrt 5)$

Hence:

$2\sqrt 2 + 2\sqrt 5$ = $2 (\sqrt 2 + \sqrt 5)$

6 0

3 years ago

Sandstone is a(n) ____ sedimentary rock.

LiRa [457]

<span>Sandstone is a clastic sedimentary rock. A clastic sedimentary rock is composed of silicate minerals and rock fragments. They are transported by moving fluids such as sedimentation due to gravity and are deposited in the area where it stays. They are composed mostly of feldspar, quartz, rock (lithic) fragments, clay minerals and mica.</span>

4 0

3 years ago

What do you know about green revolution

kiruha [24]

Answer:

The great increase in production of food grains (such as riceand wheat) due to the introduction of heigh- yielding varieties,to the use of pesticides,and to better management's techniques

3 0

3 years ago

Read 2 more answers

In Brazil, the indigenous population was around 3.5 million before the arrival of Europeans. Today, the indigenous population is

77julia77 [94]

A. 500,000 indigenous people living in Brazil.

7 0

3 years ago