Winds, Storms and Cyclones — Science STD 7 — Question

What is simple pendulum?

On what factors does the heat produced in a wire depend?

Following statements describe the five steps in animal nutrition. Read each statement and give one word for each statement. Write the terms that describes each process. Transport of digested and soluble food from the intestine to blood vessels.

How are the terminals of the cells connected?

I once watched a part of marathon on a straight road stretch. I noticed that some people seemed to be running at the same speed during that distance while some people would speed up or slow down. How were their motion different?

What type of change is photosynthesis?

Name the main excretory product in human being.

State whether the following statements are True or False. In case a statement is false, write the correct statement.
Sewage is a solid waste which causes water pollution and soil pollution.

What is transpiration?

Why are earthworms called a farmer’s friend?