Gibor Basra and other scientists wanted to find out how weather stars other than the sun have planets orbiting around them. What made this a difficult question to investigate?

The correct answer to this open question is the following.

Although there are no options attached, we can say the following.

What made this a difficult question to investigate is the fact that stars are so far away and other solar systems are even farthest. Although powerful countries have modern technology and modern telescopes, science still has many limits to study space and the galaxy. To answer the question, scientists such as Gibir Basri need deep research and observations to have the correct measurements and come up with valid conclusions.

So in conclusion, it is almost impossible for Basri and other scientists to see planets orbiting faraway stars. Actually, we do not have the technology to do that.

levels of production can be increased by technology while holding labor and capital constant, because increased technology makes the production process more efficient. subsequently, the lras curve is almost a vertical line, that can shift to the right, with an increase in technology.

the relationship between the lras curve and the ppc is that both can make the economy could grow. the ppc achieves that when it shifts outward because of more resources or technological advances while the lras curve shifts if more resources are developed or if there are technological advances.

the lras curve is a vertical line at an output level that represents the number of goods and services a nation can produce over a sustained period using all of its productive resources as efficiently as possible with all of the current technology available to it.

the production possibilities frontier (ppf) is a graphical device that is used for economic analysis of production decisions because the ppf measures the maximum possible combinations of two goods that an economy is capable of producing with its currently available resources and technology.