Questions

The formed elements are so named because they are enclosed in a plasma membrane and have a definite structure and shape.

The formed elements in the blood are Erythrocytes (RBC's), Leukocytes (WBC's) and Thrombocytes (Platelets).

Error is in second part. Replace ‘have’ with ‘had’. Since two events are mentioned and both occurred in the past, the even that happened first will be expressed in past perfect tense. Hence ‘had conquered’ is the correct form.

The Kyoto Protocol is an international agreement linked to the United Nations Framework Convention on Climate Change, which commits its Parties by setting internationally binding emission reduction targets.

Recognizing that developed countries are principally responsible for the current high levels of GHG emissions in the atmosphere as a result of more than 150 years of industrial activity, the Protocol places a heavier burden on developed nations under the principle of "common but differentiated responsibilities."