Which of the following is an opinion about the ISS? Group of answer choices.

More than 20 countries have helped build and maintain it

It proves that space travel is worth the time and effort

Many scientific experiments are carried out onboard

The Columbia space shuttle disaster caused delays in its construction

Food can come from sustainable or unsustainable resources. why has the united nations suggested that bugs could be a better source of food than animals like pigs or cattle?

Which statement explains what upwelling causes? a. upwelling causes tides to rise and fall. b. upwelling causes changes in the direction of currents. c. upwelling causes nutrients, minerals, and tiny organisms to rise. d. upwelling causes currents in the pacific ocean to change direction. i think the answer is c.

What would have happened to portugal’s trade if they had not found a way to sail around the tip of africa