(Question)
Q: What do we call use of electric current to encode information? Read this paragraph and choose the correct option from the provided answers: The use of electric current to encode information is called electronics. Electronic signals may be digital or analog signals. Both types of signals encode information by changing the voltage of an electric current, but they do so in different ways. Choices: - products - metals - ferious - electronics A:
(Answer)
electronics

(Question)
Q: Root-like projections anchor adults of what colony-dwelling animals to solid surfaces such as rocks and reefs? Read this paragraph and choose the correct option from the provided answers: Sponges come in a variety of shapes and sizes. For example, they may be shaped like tubes, fans, cones, or just blobs. They range in diameter from about a centimeter (0.4 inches) to over a meter (3.3 feet). Many species live in colonies that may be quite large. Adult sponges are sessile. This means they are unable to move from place to place. Root-like projections anchor them to solid surfaces such as rocks and reefs. Choices: - anemones - corals - molluscs - sponges A:
(Answer)
sponges

(Question)
Q: What is the most important source of energy on earth? Read this paragraph and choose the correct option from the provided answers: The sunlight that reaches Earth is the planet's most important source of energy. The energy in sunlight, called solar energy, is electromagnetic energy. This is a form of energy that travels through space in electric and magnetic waves. Solar energy can be used to heat homes and produce electricity in solar cells like those on the roof seen in the Figure below . Sunny areas receive plenty of sunlight to generate electricity, but solar energy may not be practical in areas that are often cloudy. Choices: - the earth's core - water - moon - sun A:
(Answer)
sun