Answer:
Observers ahead of the wave observe an apparent increase in wave frequency
Explanation:
This is the Doppler Effect. The frequency of a wave increases when the source approaches the observer and decreases as the source recedes.
B, C, and D are wrong. Observers behind the source notice a decrease in frequency.
If this is true or false, it's false.
The correct answer is B) An electron beam passes over the specimen's surface and displaces electrons, which are then focused on a screen to form an image.
Answer:
Option 3. Genetic material
Explanation:
Answer: The government is expanding its efforts to encourage public institutions, municipalities and commercial sectors to convert biodegradable wastes into energy by constructing large-scale biogas plants.
The deepening energy crisis as a result of Indian blockade along the major trade borders has offered an opportunity to become energy-independent as well as to improve solid waste problem by generating electricity from it, officials said.
Alternative Energy Promotion Centre (AEPC), the government body responsible for promotion and development of renewable and alternative energy technologies, is joining hands with the security agencies to build over 500 large-scale biogas plants across the country, said Sushim Man Amatya, programme officer working on Large Biogas and Waste to Energy at the AEPC.
The agreement between the AEPC and the security agencies, including Nepal Army, Nepal Police and Armed Police Force, to build institutional biogas plants is expected to take place within this month.
