A student wants to include a visual aid in her science presentation on global warming. Which visual aid is the best one for her to use? Four drawings of earth. First is earth shaped like a lightbulb. Second is earth burning. Third is a pair of hands holding the earth. Fourth is the earth wearing a water bottle and scarf, with a thermometer and pills nearby.

A map of earth titled 1999 to 2008 Mean temperatures. The map shows temperature anomalies in degrees centigrade.

A graphic titled 7 day forecast showing 7 days in separate boxes with icons for different types of weather and low and high temperatures for each day.

Lillypad toys is a manufacturer of educational toys for children. six months ago, the company's research and development division came up with an idea for a unique touchscreen device that can be used to introduce children to a number of foreign languages. three months ago, the company produced a working prototype, and last month the company successfully launched its new device on the commercial market. what should lillypad's managers prepare for next? a. increased competition from imitators b. a prolonged period of uncontested success c. a sharp decline in demand for the product d. a difficult struggle to move from invention to innovation