What is the name of event caused by the 3200 Phaethon asteroid around 15 December of every year?
Energy travels from Sun to Earth through
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Which of the following represents the most complex trophic level?
Why does a black board appears black in colour?
Fruits preserved in cold storage last longer because -
In a food chain, what is the difference between primary consumers and secondary consumers?
Which of the following layers of the atmosphere makes Radio Communication possible?
In December 2015, NASA's Curiosity Mars rover found the presence of ____, which will help scientists learn about the ancient wet environment.
What is the name of the most ancient spiral galaxy that existed 11 billion years ago?