At first, the earth’s surface(表面) layer (层) was made up of huge blocks of hard, solid rocks. Then slowly, the rocks broke up into smaller and smaller pieces. Finally stones, pebbles (卵石) and grains of sand were formed. Many sorts of plants and animals lived and died on the ...
7.At first,the earth's surface layer (层) was made up of huge blocks of hard,solid rocks.Then slowly,the rocks broke up into smaller and smaller pieces.Finally stones,pebbles (卵石) and grains of sand were formed.Many sorts of plants and animals lived and died on the surface of th...
At first the earth’s surface(表面) layer (层) was made up of huge blocks of hard solid rocks. Then slowly the rocks broke up into smaller and smaller pieces. Finally stones pebbles (卵石) and grains of sand were formed. Many sorts of plants and animals lived and died on the surface...
1.At first,the earth's surface layer(层)was made up of huge blocks of hard,solid rocks.Then slowly,there rocks broke up into smaller and smaller pieces.Finally stones,pebble(卵石)and grains of sand were formed.Many sorts of plants and animals lived and died on the surface of the earth...
At first,the earth's surface layer(层) was made up of huge blocks of hard,solid rocks.Then slowly,there rocks broke up into smaller and smaller pieces.Finally stones,pebble(卵石)and grains of sand were formed.Many sorts of plants and animals lived and died on the surface of the earth....
结果一 题目 ④ Which is the first layer above the surface of the Earth? A. Stratosphere. B. Troposphere. C. Atmosphere. 答案 优质解答相关推荐 1④ Which is the first layer above the surface of the Earth? A. Stratosphere. B. Troposphere. C. Atmosphere. ...
At first, the earth’s surface layer(层)was made up of huge blocks of hard, solid rocks.There slowly, the rocks broke up into smaller and smaller pieces.Finally stones, pebble(卵石)and grains of sand were formed.Many sorts of plants and animals lived and died on the surface of the ear...
At first, the earth’s surface layer (层 ) was made up of huge blocks of hard, solid rocks.There slowly, the rocks broke up into smaller and smaller pieces. Finally stones, pebble(卵石) and grains of sand were formed. Many sorts of plants and animals lived and died on the surface of...
EA first the earth's surface layer(层) was made up ofhuge blocks ofhard solid rocks.Thenslowly,the rocks broke up into smaller and smaller pieces. Finally stones pebbles (卵石)and grains ofsand were formed Many sorts ofplants and arimal ived and died on the surfaceof the earth. Their ...
of the earth.T heir remains mized with stones and pebbles formed soil.T he outmost layer of the earth is soil.T here are many ways in which large pieces of rock break into smaller ones.Wind , water , heat and cold help to break up rocks.When winds blow grains of sand against a ...