Answer:
Na and K
Explanation:
Every elements in the same group have similar chemical characteristics
Lead emission since early 1980s have DECREASE DUE TO LEAD FREE GASOLINE.
Lead is a natural occurring element that is found in small quantity in rocks and soils. Lead emission is an important environmental health issue because a very small quantity of lead can cause adverse effects on the nervous system of unborn babies and young children. Because of this, the government took all necessary measures to ensure that its emission was drastically reduced.
1)C S phase 2) B interphase, prophase, metaphase, anaphase, telophase 3) A 4) C
I think is a) dilates the bronchi
D identity disorder is characterized by the presence of two or more distinct personality identities. Each may have a unique name, personal history, and characteristics.