Which of the following inventions is mentioned in the passage as a practical application of Einstein's discoveries?

390)_______ people continue cutting down that many trees in Sarawak rain forest, all the trees could be gone in eight years.

The word “them” means

Which conclusion could be drawn from the passage?

We can infer from the passage that

The word “emaciated” in the passage mostly means

According to the passage, which of the following is learning in broad view comprised of?

The phrase “in season” in paragraph 1 refers to

It can be inferred from the passage that social workers, employers, and politicians concern themselves with the study of learning because they need to ______.

The word “prevent” in paragraph 1 is closest in meaning to

A survey by the French army in 1881 showed that among the 387 men (411) __________there were 1,333 designs.

Secondary rainbows are unusual because the light is reflected twice within the raindrop before it (431)________ a rainbow, so the colors are in reverse order and not as bright as primary rainbows.

The word “exalting” in the passage is closest in meaning to