Hint: This type of climate is also known as the Tropical rainforest climate. This type of climate is hot, very humid, and wet. The places with this type of climate have low atmospheric pressure. Here the annual temperature range is small and the daily temperature range is high. The Major characteristic of this type of climate is high rainfall.Complete answer:The Equator implies an imaginary line situated around the middle of the Earth. The Equator is between the north and south poles and divides the Earth into the Northern and Southern Hemispheres. At the Equator, Earth seems wider. The distance around the Earth at the Equator is 40075 kilometres. Most of the expansive rain forests in the world are in equatorial regions. Many cultures thrive in equatorial regions, as there are two seasons—wet and dry. A warm rainy season creates tropical rain forests. Many plants and animals thrive in equatorial climates. The Amazon and Congo rainforest ecosystems are an example of this.Climate implies the average weather conditions in a particular place over a long period. There are different types of climates on Earth. The countries located closer to the Equator have an Equatorial type of climate or Tropical rainforest climate. The Equatorial climate is usually hot, very humid, and wet. The atmospheric pressure is low in an equatorial climate. Due to the Intertropical Convergence Zone, equatorial regions get heavy rainfall. Here daily temperature range is greater than the annual temperature range. The countries near the equator include Ecuador, Colombia, Brazil, Gabon, Republic of the Congo, Uganda, Kenya, Somalia, Maldives, and Indonesia. The characteristics of the equatorial type of climate include:A.The Uniformly high temperature throughout the year.B.Adequate rainfall throughout the year through the convective mechanism. Hence, the correct answer is option (A).Note:The diameter of the Earth is wider at the Equator, which creates an equatorial bulge. The Equatorial bulge is about forty-three kilometers. This bulge in the equator is created by Earth’s rotation and due to this, the Earth’s gravitational pull is slightly weak. Regions with equatorial climate experience high temperature and humidity, rainfall is high.

"The correct answer is Singapore. Key Points Among the given cities, Singapore is closest to the equator. Singapore is 200 km north of the equator.  Additional Information Some other cities which lie closest to the equator Quito, Ecuador Kampala, Uganda Pekanbaru, Indonesia Padang, Indonesia Libreville, Gabon Pontianak, Indonesia Kisumu, Kenya Macapa, Brazil Mbandaka, Dem. Republic of Congo Manta, Ecuador Kismayo, Somalia Entebbe, Uganda Nuevo Loja, Ecuador Sao Tome, Sao Tome "