Which chemical reaction absorbs energy?

photosynthesis

explosion

current produced by a battery

combustion of fuels

activated hand warmers

photosynthesis

Explanation:

Photosynthesis is a chemical reaction in which light energy from sun is absorbed by the chlorophyll pigments of the plant cells. The absorbed energy is required for splitting the molecules of water so as to release oxygen as a byproduct of the reaction. Also carbohydrates like glucose is produced in the reaction as a product which is utilized by the plants so as to obtain the energy for metabolic reactions.

weather forecasts are done by collecting data about the current state of the atmosphere mainly the temperature, humidity and wind and using meteorology, to determine the atmosphere that evolves over time. the h and l mean the high and low pressure. the red strip is a warm front. the blue strip is a cold front. the blue and red strip is a stationary front. the purple strip is a occluded front.

explanation:

d

explanation:

v=uf/(u-f)

= 5.10/(5-10) convex lens has positive focal length

=50/-5

=-10 cm (formed at other side)