Which of the following is a true statement? А
Periods form horizontal rows; groups form vertical columns
B Groups form horizontal rows; periods form vertical
C Categories form horizontal rows; gases form vertical
D
Gases form horizontal rows; categories form vertical
columns

The answer is b i think

Firstly, the water in the dams hold gravitational potential energy as they are above ground level. the gravitational potential energy is then transferred to kinetic energy as it falls, spinning the turbinethe turbine then spins the generator, which is a large magnet surrounded by metal coils. by doing this, the generator generates electricity. in this action, the energy transfer taken place is kinetic to electric energy

The se-ci  bonds is more polar  than s-br bond

Hi + naoh -> h2o + nal