Which of the following is most useful to scientists in measuring the size of asteroids?

the speed at which the asteroid is traveling.
the location of the asteroid in the solar system.
the gravitational effect when spacecraft flies close to the asteroid.
the composition of the asteroid.

Which action would be considered an act of civil disobedience? rioting, which causes damage to private and government property engaging in a sit-in, in which african americans stay at a segregated business looting, which results in the theft of property from private businesses boycotting, in which people choose not to purchase goods from businesses

(25pts) this photograph represents the chinese government’s response to a challenge it faced. what challenge do you think this is? what steps might china have taken to address this challenge?

From the examples below, choose the best examples of industries in african countries and their influence on economic development. select all that accurately represent african economies and factors of production. because agriculture remains central to the success of the mali's economy, any change to climate (such as drought) or price of crops significantly affect the country as whole. the thriving manufacturing industry in chad's northern region sustains the country's economy as a whole. egypt's manufacturing and export of cotton is the primary focus of the economy in the country. morocco serves as a representative of service industries in africa with a growing tourism market.