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When should the imperfect tense be used in Spanish?

The imperfect tense should be used when: describing something one did in the past on a regular basis; setting the stage for another action (i.e. i was reading when he came in, leía cuando entró); or describi...
DF
Answered by Dan F. • Spanish tutor
2756 Views

What is the greenhouse effect?

The natural greenhouse effect is how the atmosphere works to absorb and reflect radiation to keep the Earth warm. The sun emits short wave radiation towards the Earth. The Earth's atmosphere absorbs this hea...
JH
Answered by Josie H. • Geography tutor
9883 Views

Describe the difference between a CPU and a GPU with relation to processing power and ability to perform tasks.

A CPU (Central Processing Unit) is comprised of a few large processing cores, each of which is capable of performing complicated tasks on its own. This added complexity also enables CPUs to be efficent seque...
ZS
Answered by Zack S. • Computing tutor
1973 Views

Describe how a healthy kidney produces urine

At the Bowman's Capsule, the blood undergoes ultrafiltration. This is when the smaller molecules in the blood are forced through the partially permeable membrane of the Bowman's Capsule. This is because the ...
JJ
Answered by Jacob J. • Biology tutor
4485 Views

Why do angles in a triangle add to 180?

We know that angles on a straight line add to 180 degrees. Now imagine you have a triangle and the angles are called A, B and C. We can orientate the triangles so that we form a straight line. We can see tha...
AK
Answered by Aaran K. • Maths tutor
3852 Views