It is an adjective. It means "easy to reach, enter, or use."
accessible
The doctor said that one hour of sleep was not a__________ for a healthy adult.
adequate
Scientists believe that continuous __________ is essential for solving global environmental problems. (innovate → noun)
innovation
Regular exercise and a healthy diet contribute ________ a longer and healthier life.
to
antibody • destination • serotonin • enzyme
destination (The others are related to biology/medicine.)
It is a noun. It refers to the basic systems, such as roads and bridges, that help a country function.
infrastructure
Although electric vehicles are becoming more common, many countries still need to e__________ their charging networks.
expand
Every employee is expected to make a valuable __________ to the success of the project. (contribute → noun)
contribution
Young children often depend ________ their parents for support and guidance.
on
accessible • compatible • sustainable • manipulation
manipulation (the others are adjectives)
It is a verb. It means "to officially begin using something new, such as a policy or method."
adopt
Scientists hope the new technology will a__________ the development of cleaner energy solutions.
Regular maintenance improves the __________ of the power supply during severe weather conditions. (stable → noun)
stability
High levels of stress are often associated ________ poor sleep quality.
with
battery • magnetic coil • touchscreen • investment
investment (The others are related to technology or electronic devices.)
It is a noun. It means a general agreement reached by a group after discussion.
consensus
Researchers found that constant exposure to loud noise may i__________ with children's ability to concentrate.
interfere
Her __________ helped her continue the research even after many failed experiments. (persist → noun)
persistence
Many scientists specialize ________ genetics or biotechnology.
in
consequence • breakthrough • transformation • innovation
consequence (The first three describe change or progress, while consequence refers to a result or effect.)
It is a verb. It means "to pass through or enter something by force or gradually."
penetrate
Unless governments reduce carbon emissions, climate change will continue to d__________ ecosystems around the world.
deplete
Many people question the __________ of using artificial intelligence to make important decisions without human involvement. (ethical → noun)
ethics
Electric vehicles account ______ 15% of total car sales this year.
for
emit • absorb • penetrate • corrode
corrode (The first three describe the movement or transfer of energy or substances, while corrode means to gradually damage a material through a chemical reaction.)