The third one made the most sense
Answer:
d
Explanation:
i love Georgia's peaches but to be honest i memorized the eastern half of USA
"These" should be referring to Alkali Metals.
They include metals such as Lithium, Sodium, Potassium etc.
They're classified as Group I elements because they all have one outmost shell electrons. This is why these metals are so reactive because they only need to lose one electron in order to achieve the octet of electrons (or duplet for Lithium), which means complete outmost shell electrons (2 or the 1st shell, others are 8).
The reason why they're especially reactive to Halogens (Group VII) elements are that Halogens have 7 outmost shell electrons, which only needs one more electron in order to get to the octet of electrons. So, if an Alkali metal reacts with a Halogen, the metal would give one of their electrons to the Halogen, that way, both of the elements can have an octet of electrons (or duplet).
Answer:
Bio refers to everything related to living beings or life.
Explanation:
Bio- is a prefix that relates to life, organisms and related processes. It is common to find this prefix in terms such as biotic —related to the living elements of an ecosystem— biology, which is the science that studies living beings or biography, which is the written record of a person's life.
Inanimate or non-living elements are not designated by words formed by this prefix, however, terms such as biochemistry, biomolecules or bioenergetic serve to relate chemical and physical processes or elements to living beings.
Regarding other options:
- <u><em>Water</em></u><em> is designated by the prefix hydro.
</em>
- <u><em>Earth</em></u><em> uses the prefix geo.
</em>
- <em>The prefix thermo is applied to the </em><u><em>temperature</em></u><em> related.</em>
Saguaro,desert marigold,golden barrel cactus
