1. The Himalayas stretch through the northern part of which region?
a. the Indian Subcontinent
b. Southeast Asia
c. Indonesia
d. the Indian Ocean

What are the answers for the following questions?

Some gamma ray bursts are hypothesized to come from mergers of neutron stars or black holes. if this hypothesis is correct, what else should we in principle be able to detect from such mergers? a. gravitiational waves b. x-ray bursts c. significant disruption of gas thousands of light-years away in the surrounding galaxy d. an "afterglow" of bright visible light, lasting for weeks

In russia which of these challenges affects the transportation of both petroleum products and other goods?