In which five year plan, the Panchayati Raj System was introduced in India for the first time?

Which of the following tree species in the Himalayan region is many a times held responsible for frequent forest fire in the region?

Consider the following statements:
1. Algae are primary producers in the aquatic ecosystems
2. Most edible algae are marine algae as most freshwater algae are toxic
Which among the above is / are correct statements?

Which of the following is / are features of the Dengue mosquito?

1. It is a day biting mosquito
2. It transfers the virus generally human to human, without any animal reservoir
3. It can be recognized by white markings on legs
4. Only the female can spread Dengue

Select the correct option from the codes given below:

In which of the following devices, Radio frequency spectrum is used?

1. Terrestrial broadcast television
2. Satellite broadcasting television
3. Bluetooth
4. Wi-Fi
5. Remote car keys

Select the correct option from the codes given below: