Englishfor English speakers
renewable
—
adjective
capable of being renewed; replaceable
renewable energy such as solar energy is theoretically inexhaustible
—
adjective
that can be renewed or extended
a renewable lease
renewable subscriptions
energy
Noun
—
Energy is the ability to do work: move, give off heat, give off light, etc.
Unlike coal or oil, atomic energy production creates little air pollution.
Higher electricity prices should help promote energy efficiency.
The amount of energy in 100g or 100ml of food is much higher for foods with a lot of sugar.
She's all full of energy and she can't sit still.
This problem has taken up most of her time and energy for over a year.
hydrogen
Noun
—
Hydrogen is the lightest chemical element (symbol H) with an atomic number of 1.
Hydrogen gas is highly flammable.