4.6 billion years ago - most likely hydrogen (H2) and helium (He)
probably rich in hydrogen compounds like methane (CH4), ammonia (NH3), hydrogen cyanide (HCN), water (H2O), and formaldehyde (HCHO). Also some N2, CO2 but LITTLE or NO free oxygen.
Molecules of H2 and He move really fast, especially when warm, that they eventually all escaped Earth's gravity and drifted off into space.
Answer:
Johannesburg has a delightfully mild climate, neither humid nor too hot. There are about six weeks of chill in mid-winter
Along its path, the Colorado River.
<h3>Briefing:</h3>
With a length of 1,450 miles, the Colorado forms one of the main river systems in the southwest United States and northern Mexico. Starting on the center stony mountain systems, the river runs to the southwest plateau regions and is renowned for its dramatic canyons. The horseshoe bend in Arizona allows you to witness how the rapids originate.
60-foot-deep whitewater torrents make up the majority of the river's upper reaches.
With swampy valleys in certain places close to the headwaters and the main valley's braided features. As it moves southward, the rover crosses beneath the Navajo Bridges and enters the marble canyons downstream.
The river turns to the west of Granite Gorge, close to Grande Canyon, where the Rover cuts up to one mile through the Colorado plateau and exposes some of the oldest rocks on Earth. The lower ends of the river spread to Lake Mead and the Hoover Dam.
About 75 miles south of Yuma, a sizable estuary is created before the Colorado River drains into the Gulf. The 7800 km2 area northwest of Mexico is made up of the Forma delta and flood plains.
To know more about Colorado River visit:
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Answer:
Abiotic resources are resources that are non living. Examples of abiotic factors are air, water, sunlight, soil, and minerals. Biotic resources is a type of natural resource derived from the biosphere as opposed to abiotic resource from non-living things. Supplement. Examples of biotic resources are forests, animals, birds, fish, and marine organisms.
Explanation:
