2052. Thorn-forests are found in the _______ regions.

A. semi-arid
B. high rain fall areas
C. low temperature
D. frozen areas
✅ The correct answer is option A.
This type of vegetation is found in the north-western part of the country including semi-arid areas of Gujarat,Rajasthan, Madhya Pradesh, Chhattisgarh, Uttar Pradesh and Haryana. Acacias, palms, euphorbias and cacti are the main plant species.

2057. Plants that grow in saline water-logged habitat are called

A. xerophytes
B. halophytes
C. mangroves
D. mesophytes
✅ The correct answer is option C.
A halophyte is a plant, that grows in waters of high salinity, coming into contact with saline water through its roots or by salt spray, such as in saline semi-deserts, mangrove swamps, marshes and sloughs, and seashores.

2059. _______ trees shed their leaves during winter and hot summer.

A. ever green
B. coniferous
C. deciduous
D. Shola
✅ The correct answer is option C.
Tropical deciduous trees shed their leaves in summers because the climate becomes hot and the leaves automatically become dry and shed off. Moreover they need to conserve water so that they can sustain in winters thus they shed their leaves.

2060. Lead in water can cause

A. eye disease
B. arthritis
C. kidney damage
D. hair falling
✅ The correct answer is option C.
Lead exposure can have serious consequences for the health of children. At high levels of exposure, lead attacks the brain and central nervous system to cause coma, convulsions and even death. Children who survive severe lead poisoning may be left with mental retardation and behavioural disorders.