Question

What will be the correct sequence of natural vegetation in South America if one travels from North to South along 60° to 70° W longitude?
A. Gran chacos, Pampas, Llanos Selvas
B. Llanos, Gran chacos, Selvas, Pampas
C. Llanos, Selvas, Gran chacos, Pampas
D. Pampas, Selvas, Gran chacos, Llanos

Answer 1

Hint: South America Climate is consistently hot consistently. There is next to no distinction in the temperature among summer and winter.

Complete answer: The climate of South America is impacted by the geological area. Away from the equator toward the north and south, there is some remarkable differentiation in temperature between summer and winter in the tropical area. Winters are colder and summers are less blistering. The Highlands of Brazil and Guiana get moderate annual rainfall and summer is mostly rainy season. Throughout the year, the Equatorial region gets high rainfall consistently, thus never experiences any dry season. In the Amazon Basin and other tropical-rainy fields are tremendous rain forests. The savannas are the prairies on one or the other side of the equatorial forests. Savannas are known as llanos in the basin of Orinoco river and Campos in the Brazilian Highlands.
If one travels from North to South along 60 degrees to 70 degrees West longitude in South America, the sequence of the natural vegetation will be
- Llanos is situated to the east of the Andes in Colombia and Venezuela is a tropical grassland plain in northwestern South America.
- Selvas are tropical rainforests situated in the east of the Andes and accounts two-thirds of the total landmass of the country.
- Gran Chaco or Dry Chaco is an arid subtropical region of deciduous and coniferous vegetation of the Rio de la Plata basin.
- Pampas are flat, fertile plains that expand from the Atlantic Ocean to the Andes Mountains.

Thus, the correct answer is option (C).

Note: Natural vegetation is the plant network that has been left undisturbed over a long time while permitting its individual species to change themselves to climate and soil conditions as fully as possible.