Question

Q.1. Feedback works positively and negatively. When feedback has reached self-stabilization it is at equilibrium.

True

False

Q.2. On a cloudy day, only about 5-10% of solar radiation reaches the ground.

True

False

Q.3. _________ is an important topic for current research in global climate change.

	a.	carbon cycle
	b.	extreme events
	c.	water cycle
	d.	biodiversity

Q.4. Tornadoes from in dense cumulonimbus clouds.

True

False

Q.5. The earth is divided into a grid system for locating places using circles.

True

False

Answer 1

Solution:

1)

True

It is because self stabilization maintains the steady state.

2)

The clouds stops 70 to 90% radiations from reaching the Earth.

But on a thick cloudy day, it can even stop 95% of solar radiation reaching the ground.

So, the answer is True

3)

The answer is D.

Biodiversity

4)

True

It is because cumulonimbus are called as the very tall thunderstorm clouds.

5)

True

It was used to locate North pole and south pole