Answer:
Parallax would be most effective in measuring distances to stars which are close to the Earth.
Explanation:
In the experiment,
- The parallax shift would decrease as the pencil would move further away from the scientist's eye, so option 1 would be invalid.
- the size of the pencil remains constant, so option 2 would be invalid.
- the parallax shift can be observed when the pencil has objects in the background to provide relation, that is to say, the shift of the pencil when seen relative to background objects; therefore, if we assume that the pencil is a star nearby to the Earth, and the background objects are stars that are further away, then the shift of, and thus, distance to the nearby star can be easily observed.
Answer: the orbit of Mars is significantly more elliptical being more further away from the sun than the Earth.
Explanation: An elliptical orbit is said to be formed when object revolves around another in an oval-shaped path known as an ellipse. The planets in our solar system orbit around the sun in elliptical orbits.
The different planets have their different distances from the sun which affects, their climate and determines if life can exist in them.
Many man made satellites orbit the Earth in elliptical orbits, so also does the moon. Generally, most objects and satellites in outer space travel in an elliptical orbit.
1. A) carnivore; third
The trophic levels are divided by the manner in which the energy is produced and consumed among the living organisms. The first trophic level is occupied by the autotrophs, which are the organisms that are able to produce their own food. The second trophic level is occupied by the organisms that feed upon the autotrophs, thus they are the herbivores, as well as the omnivores in partial sense. In this case we will have the ants at the second level. The third trophic level is reserved for the organisms that feed upon the organisms of the second trophic level, thus they are predators. In this case, we will have the wasp in the third trophic level.
2. B) consumption; 20
If there are herbivores and plants, the plants account for 1,000 kg in biomass, and the herbivores eat 200 kg of them, then the consumption is 20% of the total biomass. This kind of a scenario is able to support the whole population of herbivores without any problem, as there is much more food than they need. It will only become a problem if the population of herbivores starts to grow exponentially, and they start to consume all of the food and even require more, the population will collapse.
3. C) N20
The processes and nitrification and denitrification are very common, both in nature, and because of the human activity. The human activity has actually increased this process significantly. The main product of the nitrification-denitrification is the N2O. It is a vital product for the nitrogen cycle, and it is one that is increasing the atmospheric temperature, thus too much of it is not of best interest for anyone.
Irredentism is related to, but distinct from, secession. Irredentism is the process by which a part of an existing state breaks away and merges with another, whereas in secession merging does not take place. The importance of irredentism in international relations is based on the intersection between nationalism and the causes of war; because such a movement invariably means taking land from another state, irredentist claims have been known to provoke ethnic conflicts and territorial aggression. The continued discord between countries and states means that the potential for irredentist wars remains serious. The Admission to the Union Clause of the United States Constitution (often called the New States Clause) found at Article IV, Section 3, Clause 1, authorizes the U.S. Congress to admit new states into the Union (beyond the thirteen already in existence at the time the Constitution went into effect). The Constitution went into effect on June 21, 1788, after ratification by 9 of the 13 states, and the federal government began operations under it on March 4, 1789.[1] Since then, 37 states have been admitted into the Union. Each new state has been admitted on an equal footing with those already in existence.[2]
Of the 37 states admitted to the Union by Congress, all but six have been established within an existing U.S. organized incorporated territory. A state so created might encompass all or a portion of a territory. When the people of a territory or a region thereof have grown to a sufficient population and make their desire for statehood known to the federal government, in most cases Congress passed an enabling act authorizing the people of that territory or region to frame a proposed state constitution as a step toward admission to the Union. Although the use of an enabling act was a common historic practice, several states were admitted to the Union without one.
In many instances, an enabling act would detail the mechanism by which the territory would be admitted as a state following ratification of their constitution and election of state officers. Although the use of such an act is a traditional historic practice, several territories have drafted constitutions for submission to Congress absent an enabling act and were subsequently admitted. The broad outline for this process was established by the Land Ordinance of 1784 and the 1787 Northwest Ordinance, both of which predate the U.S. Constitution.
Answer:Which of the following is the best example of an invention that has been used to overcome physical features?
A.
ships
B.
fences
C.
microwaves
D.
gaming systems
Explanation:
