1. The statement is false.
Explanation: Forests are mainly found in areas of abundant rainfall because scanty rainfall does not support much vegetation.
2. The statement is true.
Explanation: Desert areas are characterised by low rainfall and extreme temperatures. Hence, to reduce the loss of water through evaporation, vegetation is modified accordingly. Thick bark and long thorns prevent the loss of water.
3. The statement is false.
Explanation: Kaziranga National Park in Assam was established to protect one-horned rhinoceroses. Manas, on the other hand, is a tiger reserve.
4. The statement is false.
Explanation: Keibul Lamjo National Park is located in Manipur. It is the only floating national park found in the Loktak Lake.