However, he was color blind, so he had to rely on the eyes of his assistant, who could easily (430)________all the seven colors: red, orange, yellow, green, blue, indigo and violet.

We can infer from the passage that

The word “them” means

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 “prevent” in paragraph 1 is closest in meaning to

The word “emaciated” in the passage mostly means

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

Sailors came back from these islands with

Which of the following best explains why composting is not feasible on a large scale?

Getting married, raising children, and finding and keeping a job are mentioned in paragraph 2 as examples of ______.

The (389)______ trees are cut down to sell the wood to start farms.

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 author implies that________.

During the 1860’s, canned food products were