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- Question
Which of these is a starting point for primary succession?
Options- A. a neglected yard
- B. a surface exposed by a retreating glacier
- C. an abandoned city
- D. abandoned farmland
- Correct Answer
- a surface exposed by a retreating glacier
- 1. Valve between the left ventricle and Aorta?
Options- A. Pulmonic valve
- B. Tricuspid valve
- C. Aortic valve
- D. Mitral valve Discuss
- 2. The term hierarchy refers to
Options- A. a team in which everyone is equal and has to pull his or her own weight
- B. a power structure in which each member knows his or her own place
- C. a situation in which higher species such as men will always be in control of lower species such as animals
- D. a condition in which the weak must die so the strong can survive Discuss
- 3. Planets do not twinkle because
Options- A. Far distance
- B. Total internal reflection
- C. Refraction
- D. Near distance Discuss
- 4. Which of the following is not a polymer?
Options- A. DNA
- B. Glucose
- C. Starch
- D. Cellulose Discuss
- 5. Lipids are insoluble in water because lipids are
Options- A. Hydrophobic
- B. Zwitter ions
- C. Hydrophylic
- D. Neutral Discuss
- 6. Which of the following is a characteristic of all minerals?
Options- A. Crystalline solids
- B. Minerals are inorganic
- C. All minerals are formed in a natural process
- D. All the above Discuss
- 7. Which of the following is NOT true about energy balance?
Options- A. Inactive people use more energy so they should consume fewer calories.
- B. Energy balance is the balance between the amount of calories consumed and the amount used for energy.
- C. Energy balance is influenced by the amount of exercise one gets and their dietary habits.
- D. Stored body fat will increase if calorie intake is greater than energy used. Discuss
- 8. Which of the following causes tornadoes?
Options- A. condensation
- B. dry climates
- C. wind shear
- D. stationary fronts Discuss
- 9. Energy is measured in units called
Options- A. Newtons
- B. Watts
- C. Joules
- D. Ohm/mtr Discuss
- 10. Wild animals are not considered a natural resource.
Options- A. TRUE
- B. FALSE Discuss
General Science problems
Search Results
Correct Answer: Aortic valve
Explanation:
The Aortic valve - located between the left ventricle and the aorta
The Mitral valve - located between the left atrium and left ventricle
The Tricuspid valve - located between the right atrium and the right ventricle (and)
The Pulmonary (pulmonic) valve - located between the right ventricle and the pulmonary artery.
Correct Answer: a power structure in which each member knows his or her own place
Explanation:
Hierarchy is a system of ranking in which members of a particular society are ranked in an ascending order depending on various factors.
Hence, the term hierarchy refers to a power structure in which each member knows his or her own place.
Correct Answer: Near distance
Explanation:
Stars twinkle because they?re so far away from Earth that when light from the stars passes through the atmosphere, it is bent countless times due to refraction, making it look like as if they were blinking. The sun and other planets doesn?t twinkle because it?s too close to Earth compared to other stars.
Correct Answer: Glucose
Explanation:
Since A polymer is a large molecule, or macromolecule, composed of many repeated subunits. Glucose is not a polymer.
Correct Answer: Hydrophobic
Explanation:
Lipids are soluble in solvents of low polarity, which simply means that lipids are soluble in nonpolar solvents. This solubility property is a result of the large nonpolar regions that are indicative of the lipid molecule.
Correct Answer: All the above
Explanation:
Common properties of Minerals are :
1. All minerals are formed in a natural process.
2. Minerals are inorganic
3. Minerals are crystalline solids.
4. Every mineral is an element or compound with a definite chemical composition.
Correct Answer: Inactive people use more energy so they should consume fewer calories.
Explanation:
The given statement option A) is False regarding energy balance.
It should be "Inactive people use less energy so they should consume fewer calories."
Correct Answer: dry climates
Explanation:
Conditions suitable for the formation of a tornado develop when varying temperatures and humidity come together and form thunderclouds. This refers to the presence of warm and moist condition in the lower atmosphere and cold and dry conditions in the upper atmosphere. The place where these varying masses of air meet is known as the dry-line. Such conditions, which are suitable for the formation of a tornado, are most often observed just before a low pressure system develops.
Once the ideal conditions occur, the warm air tries to rise in the atmosphere, while the cold air blocks it. This makes the air in between rotate horizontally. In the meanwhile, the land is heated by the Sun, and hence, the air near the ground becomes warm and starts rising. Continuous fueling by the heat energy from the Sun ensures that the warm air has an upper hand over cold air. As a result of this, the cold air at the top starts sinking and the warm air below starts rising in a spinning motion. As the amount of warm air increases, the formation gains height and becomes intense. The intensity of these devastating tornadoes is such that they can clear off anything that comes in their path.
Correct Answer: Joules
Explanation:
Energy is measured in units called Joules.
Joule is unit of work or energy in the International System of Units (SI) which is equal to the work done by a force of one newton acting through one metre.
1 Joule = 107 ergs or 0.7377 foot-pounds.
Correct Answer: FALSE
Explanation:
Natural resources are resources taken from nature to satisfy our needs. As wild animals are on the earth naturally, they are considered as natural resources.
Hence, the given statement is false.
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