The correct answer is A - They allow us to see distant objects as they were long in the past.
Explanation:
A telescope is an optical instrument. It helps in magnifying distant objects usually stars and planetary bodies through the use of various lenses and mirrors. A time machine is a hypothetical device that transports an object/matter between different time frames.
When we view objects with a telescope, what we are seeing through the lenses have already occurred, especially when viewing distant objects. This is because of light. Light travels.
For example, if you are looking at the sun directly, you are seeing the sun as it was about 8mins 20secs ago. Now imagine viewing distant objects, you are actually looking at the past.
The layer at the bottom of the measuring stick was deposited prior to the layer at the top of the measuring stick.
There is a large clast (a fragment of rock) that appears to be different from and inserted into the sediment.
There is evidence of changes in how sediment was transported during deposition of these sediments.
Explanation:
The geologist who studies the sequence of the rocks and that is relative to the layers of the rocks and as the layers of the bottom is aired of the stick deposits before the layers of the measuring and there is a large class of a fragment of the rocks.
That appears to be different from the to intersect into the sediments and there is an evidence of the changes in how sediments were transported and deposited during these sediments.