Answer: The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against mechanical and osmotic stress.
Answer:
Millions of years ago, the Appalachians were taller than the Himalayas! Millions of years of erosion, however, have taken their toll. ... The crust that is now the Appalachians began folding over 300 million years ago, when the North American and African continental plates collided.
2 The correct answer is (b)beach erosion to the unprotected coastline
A large storm destroys the greenbelt of an island The consequences is beach erosion to the unprotected coastline. The beach erosion takes place in the area which is not protected.
3 The correct answer is (b) a loss of biodiversity due to human activity
The forest habitat is cleared which results in the loss of biodiversity by human interventions. The area which was the habitat of organisms has now been converted into shopping complex due to which the habitat loss of many organisms took place.
