unit gas and stuff apes study

El Niño, a periodic warming of ocean surface waters, occurs in which of the following regions?

Tropical east pacific

Which of the following shows the approximate concentration of CO2 , N2 , and O2 in dry air?

<1% , 78% , 21%

The most abundant element in Earth's atmosphere

Nitrogen

The most abundant gas in Earth's atmosphere is

Nitrogen

The beneficial ozone layer is in this region of the atmosphere.

Stratosphere

During an El Niño event, warm surface water moves from the western equatorial Pacific Ocean to the eastern equatorial region. Which of the following best describes how the warm water will affect upwelling off the coast of equatorial South America?

The warm surface water will decrease upwelling because the cooler temperatures on land in the region will prevent upwelling

The primary cause of Earth's seasons is the

constant tilt of Earth's rotational axis with respect to the plane of its orbit around the Sun

Most of the Earth's deserts are at approximately 30° latitude, north and south, because these latitudes are characterized by

descending dry air currents

During an El Niño-Southern Oscillation event, which of the following best describes conditions in the eastern part of the tropical Pacific Ocean (e.g., near Peru and Ecuador)?

high sea surface temperture high rainfall

Which of the following factors is fundamentally responsible for seasons on Earth?

the tilt of earths axis of rotatiion

Most oxygen is found in this layer of the atmosphere.

thermosphere

The phenomenon causing global warming occurs primarily in this region of the atmosphere.

troposphere