Environmental Science
The wind-chill factor:

Tells farmers when to protect crops from a freeze
Determines how low the air temperature will be on any given day
Indicates the temperature at which water freezes on exposed skin
Takes into account humidity and air temperature in expressing the current air temperature
Relates body heat loss with wind to an equivalent temperature with no wind

ANSWER DOWNLOAD EXAMIANS APP

Environmental Science
Lead poisoning

reduces O2 carrying capacity of hemoglobin in blood
reduces O2 carrying capacity of myoglobin in muscles
increases O2 carrying capacity of hemoglobin in blood
increases O2 carrying capacity of myoglobin in muscles

ANSWER DOWNLOAD EXAMIANS APP

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

ANSWER DOWNLOAD EXAMIANS APP