It's being estimated that dinosaurs lived on Earth from about 237 million years ago to about 66 million years ago. So answers B and D are definately too "old", while answer A is too "young". I'd pick answer C as it's most probable.
The Middle East has 4 different climatic regions. East coast, mountainous region, gravel planes, and the desert region.
Hey there! I'm happy to help!
Within the biosphere, all of the Earth's other spheres work together.
The root word "bio" means life, and in biology, that is what we are studying! The biosphere encompasses the life in all parts of the Earth. The water (hydrosphere), the air (atmosphere and troposphere), and the ground (lithosphere). These are all driven by life, which is what they all have in common.
Have a wonderful day and keep on learning! :D
Division of ethnic groups to different parts of the continent
