In this method of farming, seeds and fertilizer are put into the soil through small cuts made in the surface of the ground.

用这种方法耕作，种子和化肥可地表很小的切口放入土里。

Likely the water's now frozen, in a kind of permafrost beneath the surface, but maybe there are pressures and temperatures in various areas of Mars that have liquified the ice and created perhaps aqua forms.

可能水现在冻结在地表下面的冻土层里，但火星不同的地方可能会有压力和温度融化冰，可能会产生液体的水。

One degree of latitude on the earth's surface equals almost 70 miles.

地表上的纬度一度相当将近七十英里。

Now for a scientific look at how this eruption is playing out beneath the surface.

现在我们来看看这次火山喷发如何在地表下发生的。

Now this is going to represent the warm temperatures near the surface.

这代表地表附近的较暖的温度。

Where would you find about 20 percent of the world's surface freshwater?

世界上20%的地表淡水来自哪里?

Most oases will have fresh water springs or ponds above the surface open to the air, and this is what allows both people and plants to inhabit the area.

大部分绿洲都有位于地表的，露天淡水泉或淡水池塘，这人和植物能够在此栖息的保障。

Most of the animals and plants living on the surface will begin to die.

大多数生活在地表的动植物将开。

They could be metal as well but they are hard surfaces and sometimes they come out of the asteroid belt and closer to the surface of the Earth or at least our atmosphere.

它们也可能由金属构成，它们外表坚硬，有时飞出小行星带，来到离地表更近的地方，或者至少来到我们的大气层。

These are surface manifestations of the incredible amount of heat that lies beneath us.

这些就我们脚下大量热能在地表的呈现形式。

It's volcanic but don't panic as the blast beneath the surface that can help corral " reef generate" and serve a higher purpose than just giving us a site to see.

这火山，但不要惊慌，因为地表下的爆炸可帮助“产生珊瑚礁”进而提供一个更高的目的，而不仅仅给我们一个地点来看。

And it uses 90% of its surface and groundwater.

它使用了 90% 的地表水和地下水。

But as the earth heats up, the hottest days of summer are upon us.

但随着地表热量的累积，炎炎夏日即将到来。

Or, 'twenty miles below the earth's surface', definitely not immediately under it.

再有“地表20英里下”，指的绝对不指紧挨着地表的地方。

The goal was to collect rock and dust samples from beneath the surface.

目的收集地表下的岩石和尘土样本。

We're collecting temperature data below the soil surface.

我们正在收集地表下的温度数据。

Surface waters are 30% more acidic than before the industrial revolution.

30％的地表水酸性比工业革命前强。

It was born and has been nurtured two metres below the surface.

它在地表下两米的地方出生并被哺育长大。

This means human activity has greatly affected animals on three-quarters of Earth's surface.

这意味着人类活动对地表三分之二的动物造成了大量影响。

The force can break up rock under the Earth's surface, releasing oil and gas.

所产生的压力可可地表下的岩石破裂达到释放石油和天然气的目的。