Question

1. choose the correct answer.

devices used in homes to convert sunlight into electricity are ____.
○ solar panels
○ solar mills
○ sun factories
○ solar turbines

1. choose the correct answer.

what is a disadvantage of hydropower dams?
○ many pollutants are put into the air.
○ people and animals can lose their homes to flooding.
○ not every place is close to the ocean.
○ not every place receives many hours of direct sunlight.

Explanation:

Question 3

Solar panels are devices that convert sunlight (solar energy) into electricity through the photovoltaic effect. Solar mills, sun factories, and solar turbines are not standard terms for this function. Solar mills might be confused with windmills (for wind energy), sun factories is not a recognized device, and solar turbines are more related to converting heat (e.g., from concentrated solar power) into mechanical energy to generate electricity, but the common home - use device for direct sunlight - to - electricity conversion is solar panels.

• Option 1: Hydropower dams do not put many pollutants into the air as they do not involve burning fossil fuels like some other power generation methods.
• Option 2: When a hydropower dam is built, the reservoir behind it can cause flooding of the surrounding areas. This displaces people and animals from their habitats, which is a well - known disadvantage of hydropower dams.
• Option 3: The proximity to the ocean is not a relevant factor for hydropower dams, which rely on flowing water (usually from rivers) rather than the ocean.
• Option 4: The amount of direct sunlight is relevant for solar power, not hydropower.

Answer:

A. solar panels

Question 4