Match the following. 1. any substance that kills germs
2. drugs that attack specific bacteria
3. substance that attacks fungi
4. chemical that destroys pathogens inside the body
antibiotics
germicide
anti-infective
antifungal agents

Explanation:

1. any substance that kills germs

ans. germicide

2. drugs that attack specific bacteria

ans. antibiotics

3. substance that attacks fungi

ans. antifungal agents

4. chemical that destroyed pathogens inside the body

ans. anti-infective

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

the truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey.