About 71 percent<span> of the Earth's surface is water-covered, and the oceans hold about </span>96.5 percent<span>of all Earth's water. Water also exists in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers</span>
Answer:
Correct answer is A. Islamic calendar.
Explanation:
A is correct as this answer known as Hijra happened in 622. This year marks the period from when the Muslims started counting time.
B is not correct as Medieval period starts with the fall of Western Roman Empire.
C and D are not correct as this don't refer to the Muhammed's move from Mecca to Medina.
Two dominant climates in South Asia are:
- Tropical wet or equatorial climate
- Tropical dry or Savannah climate
<u>Explanation:</u>
Tropical wet climate characteristics :
- There are heavy rainfall and no dry season. The climate is consistent throughout the year.
- The regions in South Asia where this climate prevails are the west coast of India up to Mumbai, South of Sri Lanka, and the south of Bangladesh.
- The type of ecosystems found in the Tropical wet climate region is the Evergreen tropical rain forest and Monsoon rain forest.
- Animal found here is the monkey and vegetation available here are teak and ebony
Tropical dry climate characteristics :
- This climate is mainly characterized by a dry season followed by a wet season. It is found mainly in Southern India, Southern Bangladesh, and Sri Lanka.
- The tropical monsoon season is from July to December. The landscape in these regions is midway between a rain forest and a desert, mainly composed of grasslands.
- The type of ecosystems found in these regions is deserts and grasslands. Animal found here commonly is the elephant and vegetation found prominently are orchids and cacti.
Answer:
A stalactite
Explanation:
It is produced by precipitation of minerals
