Match the element with its description. Match Term Definition
Sodium A) Malleable, soft, and shiny
Silicon B) Has properties of both metals and nonmetals
Bromine C) Highly reactive gas
Argon D) Nonreactive gas

Sodium: Malleable, soft, shiny

Silicon: Has Properties of both metals and non-metals

Bromine: Highly Reactive

Argon: Non-reactive

answer: - few nutrients

high pressure

low temperatures

explanation: 1. few nutrients:   open-ocean zone is located way far from the land, which is the main source of the essential nutrients.2. high pressure: pressure increases by 1 atmosphere for every 10 meters increase in depth.3. ample sunlight: a large fraction of the sunlight is reflected back to the atmosphere from the sea surface. 4. varying salinity: below the thermocline, the water is isolated from the atmosphere so the salinity remains stable over the year.5. low temperatures:   the temperature of open-ocean zone ranges from a low of -2°c to an average of 17°c

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times