Dinosaurs became extinct nearly 65 million years ago...

Question

Dinosaurs became extinct nearly 65 million years ago... 

 

Q1: Define mass extinction.

An: I got no idea. please help.

 

Q2: State a type of evidence that suggests dinosaurs once existed.

An: from fossil skeletons

 

Q3: Suggest one way to protect plants and animals from becoming extinct.

An: By getting rid of greenhouses gases. 

 

Please check if my answers are correct. and Thank you for your time. 

Answer 1

Hi Dr. Me,

 

Mass extinction refers to the time periods in the geologic time scale during which rapid and widespread loss of biodiversity on Earth took place. The number of plant and animal species decreased significantly during these periods. The most recent one was about 66 million years ago.

 

Your answers to 2 and 3 are correct.