The alpha particles are compact clusters of____?

✅ C. 300,000 km/s

a: 3,000,000 km/s | b: 3,000 km/s | c: 300,000 km/s | d: 30,000 km/s Read more

✅ B. 20000

a: 200 | b: 20000 | c: 1020 | d: 2000 Read more

✅ A. Electron

a: Electron | b: Neutron | c: Photon | d: Proton Read more

✅ A. 100°C

a: 100°C | b: 50°C | c: 0°C | d: 150°C Read more

✅ D. 31000

a: 3100 | b: 1031 | c: 310 | d: 31000 Read more

✅ B. 300,000 km/s

a: 30,000 km/s | b: 300,000 km/s | c: 3,000 km/s | d: 3,000,000 km/s Read more

✅ B. Using efficient appliances and switching off unused devices

a: Blocking ventilation filters | b: Using efficient appliances and switching off unused devices | c: Leaving every light on | d: Opening a refrigerator door for long periods Read more

✅ A. 4000

a: 4000 | b: 40 | c: 1004 | d: 400 Read more