Environmental Science
Much of Tibet lies at altitudes over 18,000 feet where the pressure is about 500 mb. At such altitudes, the Tibetans are above roughly:

10% of the air molecules in the atmosphere
75% of the air molecules in the atmosphere
50% of the air molecules in the atmosphere
25% of the air molecules in the atmosphere

ANSWER DOWNLOAD EXAMIANS APP

Environmental Science
In the food relationship where the lion eats the wild beast, and the wild beast eats plants

The lion is the primary consumer and the wilde beast is the secondary consumer
The lion is the prey and the wilde beast is the predator
The lion is the predator and the wilde beast is the prey
The lion is the secondary consumer and the wilde beast is the primary consumer

ANSWER DOWNLOAD EXAMIANS APP