(GIVING BRAINLIEST TO WHO HELPS ME!!) What causes lightning?

A) Build up of electric charges in the clouds
B) Flow of electric charges among clouds
C) Light energy created in the clouds
D) Reflection of light by the clouds

Im gonna fail 7th grade selective breeding 1. creates offspring which are genetically identical to the parent 2. is the process of breeding only organisms with desirable traits 3. involves the removal of the nucleus of a cell 4. combines traits from organisms of different species

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?