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- Question
The hot holding temperature for potentially hazardous foods must be
Options- A. not less than 60 deg
- B. less than 60 deg
- C. less than 5 deg
- D. None of the above
- Correct Answer
- not less than 60 deg
ExplanationPotentially hazardous foods are foods that might contain food poisoning bacteria and are capable of supporting growth of these bacteria or formation of toxins to levels that are unsafe for consumers, if the foods are not stored at correct temperatures. Toxins are poisonous chemicals produced by some types of bacteria.
The food can be left at room temperature until it reaches 60 deg C because food-poisoning bacteria will not multiply at 60 deg C or above. However, do not leave food cooling at room temperature unless you are sure that the temperature of the food is still at least above 60 C. - 1. What type of macromolecule is DNA?
Options- A. Proteins
- B. Carbohydrates
- C. Nucleic acids
- D. All of the above Discuss
- 2. What gas makes up most of the atmosphere?
Options- A. Oxygen
- B. Helium
- C. Nitrogen
- D. Carbondioxide Discuss
- 3. The term "simple carbohydrates" refers to
Options- A. polysaccharides
- B. monosaccharides and disaccharides
- C. starch and glycogen
- D. dietary fiber Discuss
- 4. Pluto dwells on the inner edge of the
Options- A. Main asteroid belt
- B. Oort cloud
- C. Kuiper belt
- D. None of the above Discuss
- 5. What is the principle carbohydrate of milk?
Options- A. Fructose
- B. Sucrose
- C. Lactose
- D. Galactose Discuss
- 6. Which term best describes how the solar system formed?
Options- A. Electrically
- B. Gradually
- C. Chemically
- D. Rapidly Discuss
- 7. The shadow zone exists because Discuss
- 8. Which of the following is an air pollutant?
Options- A. Sulphur dioxide
- B. Ozone
- C. Water vapour
- D. Nitric oxide Discuss
- 9. Which is a density independent factor in controlling a population?
Options- A. Food shortage
- B. Disease
- C. Floods
- D. All of the above Discuss
- 10. What structure separates the thoracic cavity from the abdominal cavity?
Options- A. Diaphragm
- B. Liver
- C. Lungs
- D. Heart Discuss
General Science problems
Search Results
Correct Answer: Nucleic acids
Explanation:
DNA stands for Deoxyribo nucleic acid. It is a nucleic acid made up of monomeric unit called Nucleotide.
A nucleotide consist of -
a) Sugar - Deoxyribose in DNA ( ribose in RNA)
b) An organic base- Adenine, cytosine, guanine.
Correct Answer: Nitrogen
Explanation:
Our atmosphere is made up of
78% Nitrogen,
21% Oxygen and
1% all other gases like argon, carbon dioxide, neon, and helium.
So, Nitrogen makes up the majority of our atmosphere.
Correct Answer: monosaccharides and disaccharides
Explanation:
Simple carbohydrates are also called as Simple sugars. Monosaccharides and Disaccharides refers to simple carbohydrates.
Correct Answer: Kuiper belt
Explanation:
Pluto dwells on the inner edge of the The Kuiper belt which is a belt of asteroids that lies on the outer edge of the solar system.
Pluto is a dwarf planet that is supposed to be no longer a planet and is still considered a planet because of its history in the solar system.
It takes 248 years to make one orbit around the sun. As to where it is, depends on time.
Correct Answer: Lactose
Explanation:
Lactose is the major carbohydrate in the milk of most species.
Lactose is a disaccharide composed of the monosaccharides D-glucose and D-galactose, joined in a ß-1,4-glycosidic linkage. The chemical name for lactose is 4-0-ß-D-galactopyranosyl-D-glucopyranose.
Correct Answer: Gradually
Correct Answer: The shadow zone is the area of the earth from angular distances of 104 to 140 degrees from a given earthquake that does not receive any direct P waves The shadow zone results from S waves being stopped entirely by the liquid core and P waves being bent (refracted) by the liquid core There are two types of Shadow zones: one for P waves and one for S waves P wave shadows between 104-140 degree, both sides; S wave shadow from 105 of one side to 105 of the other
Correct Answer: Sulphur dioxide
Explanation:
Air pollutants are solid particles, gases, and liquid droplets in the air that can adversely affect ecosystems and the health of humans.
Major ambient air pollutants include toxic metals, polycyclic aromatic hydrocarbons, benzene, particulate matter (PM), nitrogen oxides, sulfur oxides, carbon monoxide, and ozone. Power plants, factories, and vehicle and air traffic are the most important anthropogenic sources of air pollution.
In addition, natural sources such as wildfires and volcanic activity contribute to ambient air pollution.
Correct Answer: Floods
Explanation:
Any factor limiting the size of a population whose effect is not dependent on the number of individuals in the population, then such factor is called Density Independent Factor. It is things that the organisms have no control over.
Here in the given options, food shortage and disease are factors that are dependent on the number of population but Floods have no dependency.
Some examples of density independent factors are :: Earth quake, fires, volcanic eruptions, floods, and all natural calamities.
Correct Answer: Diaphragm
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