Answer:
D. 163.28mm
Explanation:
Circumference of a circle= 2πr where r is the radius
∴ 2×3.14×26= 163.48
Answer:
"The asthenosphere (Ancient Greek: ἀσθενός [asthenos] meaning "without stength", and thus "weak", and σφαίρα [sphaira] meaning "sphere") is the highly viscous, mechanically weak and ductile region of the upper mantle of the Earth. ... In some regions the asthenosphere could extend as deep as 700 km (430 mi)."
Explanation:
Geographycally speaking, Russia is situated North and West of China.
They are both countries which expand on a vast territory and confine with many countries:
China also confines with: North Korea on the East, Mongolia on the North, Kazakistan, Kirghizistan, Tagikistan, Afghanistan, Pakistan and India in the West, and Nepal, Bhutan, Myanmar, Laos and Vietnam in the South.
While Russia confines with: Kazakistan, Mongolia and Georgia on the South, Ucraina, Belarus, Latvia, Estonia and Finland on the West.