Transportation in Animals and Plants — Science STD 7 — Question

Which of the following does not form an acidic salt?

Choose the incorrect statements, what happened when wheat dough left in the open, after a few days

You are provided with three unknown solutions labelled A, B, and C, but you do not know which of these are acidic, basic, or neutral. Upon adding a few drops of red litmus solution to solution A, it turns blue. When a few drops of turmeric solution are added to solution B, it turns red. Finally, after adding a few drops of red rose extract to solution C, it turns green. Based on the observations, which of the following is the correct sequence for the nature of solutions A, B, and C?

What type of object forms a dark shadow?

Which serves the purpose of an insulator?

Which of the following helps in the formation of humus?

The table given below shows the features of four different plants.

Plants	Transpiration rate	Number of root hairs
A	Low	Less
B	Low	More
C	High	Less
D	High	More

Which plant will absorb water at the fastest rate?

The table provides information on the traits of an insectivorous plant.
A. It is green in colour.
B. The body of the plant consists of a lid and pitcher.
C. It traps the insects and digests them by secreting digestive juices.
Based on these characteristics, what could be the probable mode of nutrition of this plant?