Question

Четвертое нужна в фотке

Answer 1

1. An aerial survey is conducted by geologists from a plane or satellite.
2. They photographs are studied by them for examples of reservoir rock formations.
3. Afterwards, rock samples are collected by geologists on the ground and analysed by them.
4. The rainforests will soon be explored by geochemists for oil.
5. Magnetic fields are measured by a magnetometer, and gas can be analysed by an instrument called a gas chromatograph.