________ perform Internet Protocol blocking to protect networks from unauthorized access.
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What was Norway's rank in 2016 Human Development Index published by the United Nations Development Programme?
Why is weightlessness experienced while orbiting the earth in space ships ?
The pitch of a sound depends on its ____.
Which of the following is an unsaturated Hydrocarbon?
Which of the following carries blood away from the heart to different body parts?
Evaporation of water from leaves of a plant is called
Which vaccine is primarily used against tuberculosis?