c44

A valid passport is a … for international travel.

requisite

He sent an … email to his colleague after missing the important meeting.

apologetic

The journalist … into the company’s finances to uncover any potential corruption.

probed

The book’s … was written by a renowned  scholar in the field.

foreword

She’s a … for Friends on Earth.

campaigner

These chemicals are known to be highly toxic to honeybees and other ….

pollinators

There are so many different … to the plot that it’s hard to follow.

strands

The speech had a … influence on her.

profound

More than half of the patients suffered … of white blood cells, which fight infection.

depletion

Don’t confuse it with quick fixes — … implies deliberate, repeated practice to get noticeably better.

hone

A crisis of huge proportions … in the area.

impends

Rachel Carson … the effects of toxic chemicals on nature.

exposed

Early tools were …, made from stones and bones.

rudimentary

In biology class, students … a frog to learn about its organs.

dissected

… discovered new lands and sea routes.

maritime explorers

The … of good leadership is integrity and vision.

essence