Question 1

Why does geothermal energy provide consistent power unlike solar or wind?

Accepted Answer

It uses Earth’s internal heat available at all times

Answer

It operates only during periods of high wind

Answer

It requires large batteries to store energy overnight

Answer

It depends on daily sunlight and weather patterns

Question 2

How might a city planner advocate for geothermal over fossil fuels in a volcanic region?

Accepted Answer

It offers stable energy with lower environmental impact

Answer

It increases greenhouse gas emissions from power plants

Answer

It relies on imported coal for consistent operation

Answer

It functions best in areas without tectonic activity

Question 3

What explains why flash steam plants are common in the Philippines?

Accepted Answer

They use high-pressure hot water found locally

Answer

They need rare underground steam fields only

Answer

They depend on rivers to create steam artificially

Answer

They require the lowest temperatures to operate

Question 4

Why is binary cycle technology considered environmentally friendly?

Accepted Answer

It operates with zero emissions and fluid reinjection

Answer

It burns natural gas to heat the secondary fluid

Answer

It floods large areas to access underground heat

Answer

It releases hydrogen sulfide into the atmosphere

Question 5

How does a run-of-river hydroelectric plant reduce environmental harm?

Accepted Answer

It uses natural flow with little or no storage

Answer

It diverts all river flow to maximize turbine use

Answer

It stores massive amounts of water in reservoirs

Answer

It increases fish migration through concrete dams

Question 6

Why does a policymaker consider hydropower for flood control and energy?

Question 7

What role does a reservoir play in conventional hydropower generation?

Accepted Answer

It stores elevated water to create potential energy

Answer

It pumps steam into underground rock layers

Answer

It cools geothermal fluids before reinjection

Answer

It captures methane from plant decomposition

Question 8

How does pumped storage act like a rechargeable battery for the grid?

Accepted Answer

It pumps water uphill when demand is low

Answer

It burns fuel to generate power at night

Answer

It stores solar energy in underground tanks

Answer

It uses wind to compress air underground

Question 9

Why is geothermal energy limited to specific geographic locations?

Accepted Answer

It requires access to underground heat sources

Answer

It functions best in flat, desert environments

Answer

It needs large rivers with fast-moving water

Answer

It depends on strong coastal winds year-round

Question 10

What advantage does hydropower have in scalability compared to geothermal?

Accepted Answer

It can be built at various sizes, from small to large

Answer

It requires higher temperatures than geothermal

Answer

It only works in deep ocean environments

Answer

It produces more emissions than fossil fuel plants

Question 11

Why might a community near a volcano choose geothermal energy?

Accepted Answer

Underground steam and hot water are available

Answer

Solar panels perform better in ash-covered regions

Answer

Rivers in volcanic zones are too slow for hydropower

Answer

Volcanic areas lack sufficient heat for power generation

Question 12

How does San Roque Dam benefit agriculture in nearby areas?

Accepted Answer

It provides irrigation for tens of thousands of hectares

Answer

It reduces rainfall to control crop overproduction

Answer

It blocks all river flow to prevent soil erosion

Answer

It generates electricity only during dry seasons

Question 13

Why is reinjection important in geothermal plant operations?

Accepted Answer

It prevents groundwater contamination

Answer

It replaces the need for turbines in power generation

Answer

It increases methane emissions from surface vents

Answer

It cools the Earth’s core to stabilize energy output

Question 14

What environmental challenge is linked to large hydropower reservoirs?

Accepted Answer

They flood forests and displace communities

Answer

They lower water temperatures in rivers

Answer

They eliminate all greenhouse gas emissions

Answer

They reduce air pollution in surrounding cities

Question 15

How does a fish ladder help mitigate the impact of dams?

Accepted Answer

It allows aquatic species to bypass barriers and migrate

Answer

It cools water before releasing it downstream

Answer

It generates extra electricity using fish movement

Answer

It removes sediment buildup behind the dam wall

Question 16

Why does geothermal have a higher capacity factor than hydropower?

Accepted Answer

It operates continuously regardless of weather

Answer

It shuts down during dry months to conserve water

Answer

It requires more maintenance than hydro plants

Answer

It depends on rainfall to recharge underground fluids

Question 17

What makes binary cycle plants suitable for moderate-temperature sites?

Accepted Answer

They use a secondary fluid with a lower boiling point

Answer

They rely on direct steam from volcanic vents

Answer

They burn natural gas to boost heat output

Answer

They require steam hotter than 250°C to function

Question 18

How can methane emissions occur from hydropower reservoirs?

Accepted Answer

From decomposing organic matter underwater

Answer

From geothermal fluids released at surface

Answer

From solar panels degrading in sunlight

Answer

From burning coal in backup generators

Question 19

Why might a local government invest in run-of-river over large dams?

Question 20

What future energy strategy aligns with the Philippines’ renewable goals?

Accepted Answer

Investing in geothermal and hydropower systems

Answer

Expanding coal mining in mountainous regions

Answer

Banning all forms of renewable energy

Answer

Building more diesel-powered generators

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