Which statement about saltwater lakes is correct?

Correct answer: They may contain more salts than freshwater lakes

The direct answer is A: saltwater lakes may contain more salts than freshwater lakes. Salinity means the amount of dissolved salts in water. Step by step: water carrying dissolved minerals enters a lake; if the lake has limited outflow, salts remain; evaporation removes water but leaves most salts behind; repeated concentration can make the lake saline. Option A is correct because saltwater lakes can have a higher salt concentration than freshwater lakes, though the exact amount differs from lake to lake. Option B is wrong because saline lakes are not found only in the Himalayas; Sambhar Lake in Rajasthan is a well-known Indian example. Option C is wrong because saline lakes can form in several ways, not always through river erosion. Option D is wrong because evaporation commonly occurs and may increase salinity. Exam cue: closed basin plus strong evaporation often means salt accumulation.