Question

A biome characterized by hot summer, warm winter and treeless vegetation is-
A. Tropical deserts
B. Steppe grasslands
C. Savannah grassland
D. Temperate deserts

Answer 1

Summers are usually hotter and winters are usually warmer in desert regions. Treeless vegetation is characteristic of regions where the precipitation is low and the atmospheric humidity is also low.

Step by step answer: Biome can be defined as a region which is grouped according to the animals and plants habituating there also by certain physical and geographical characteristics like temperature, precipitation, humidity, type of soil, etc. Deserted regions occupy a great amount of land on the Earth. These biomes are usually specified with higher temperatures. Due to the high temperature, the humidity or amount of water vapour present in the atmosphere is low and becomes insufficient to form clouds that have regular water cycles. Due to very little or no amount of moisture in the air, all of the sunlight directly hits the ground and increases the temperature of land even more. This results in very low precipitation. The most important cause of such a dry and hot atmosphere is the descending air of the subtropical region. The vegetation is treeless, and most plants have thorns and photosynthetic barks to check water loss due to transpiration.
Thus, the answer is option A. Tropical deserts
Additional information: Sahara desert, Syrian desert, Arabian desert are some of the examples of tropical desert biomes. Deserts are found on all continents and occupy nearly one-fifth area of land.

Note: The tropical deserts are one of the environmental extremities found in nature. Conditions are a bit harsh and survival in the desert comes with a lot of modifications in the biotic components living there. These regions are characterized by high temperature, low or no rainfall, dry air, and low moisture content in the atmosphere.